Home / 38,287.59-52,837.34-21,520.23

Finding the Fourth Proportional to 38,287.59, 52,837.34 and 21,520.23

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Solution

The fourth proportional to 38,287.59, 52,837.34 and 21,520.23 is: 29,698.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,287.59 : 52,837.34 = 21,520.23 : x
  2. Step 2: Convert to fraction form
    38,287.59/52,837.34 = 21,520.23/x
  3. Step 3: Cross multiply
    38,287.59x = 52,837.34 × 21,520.23
  4. Step 4: Simplify right side
    38,287.59x = 1,137,071,601.79
  5. Step 5: Solve for x
    x = 1,137,071,601.79/38,287.59
  6. Step 6: Final answer
    x = 29,698.18

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Half scale
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Double scale
Find fourth proportional to 38,288.59, 52,838.72 and 21,521.23
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.