Home / 38,118.08-52,602.17-21,122.18

Finding the Fourth Proportional to 38,118.08, 52,602.17 and 21,122.18

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Solution

The fourth proportional to 38,118.08, 52,602.17 and 21,122.18 is: 29,148.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,118.08 : 52,602.17 = 21,122.18 : x
  2. Step 2: Convert to fraction form
    38,118.08/52,602.17 = 21,122.18/x
  3. Step 3: Cross multiply
    38,118.08x = 52,602.17 × 21,122.18
  4. Step 4: Simplify right side
    38,118.08x = 1,111,072,292.93
  5. Step 5: Solve for x
    x = 1,111,072,292.93/38,118.08
  6. Step 6: Final answer
    x = 29,148.17

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Half scale
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Double scale
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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.