Home / 38,516.48-53,152.08-21,521.06

Finding the Fourth Proportional to 38,516.48, 53,152.08 and 21,521.06

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Solution

The fourth proportional to 38,516.48, 53,152.08 and 21,521.06 is: 29,698.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,516.48 : 53,152.08 = 21,521.06 : x
  2. Step 2: Convert to fraction form
    38,516.48/53,152.08 = 21,521.06/x
  3. Step 3: Cross multiply
    38,516.48x = 53,152.08 × 21,521.06
  4. Step 4: Simplify right side
    38,516.48x = 1,143,889,102.80
  5. Step 5: Solve for x
    x = 1,143,889,102.80/38,516.48
  6. Step 6: Final answer
    x = 29,698.69

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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.