Home / 38,397.78-52,982.51-21,398.29

Finding the Fourth Proportional to 38,397.78, 52,982.51 and 21,398.29

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Solution

The fourth proportional to 38,397.78, 52,982.51 and 21,398.29 is: 29,526.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,397.78 : 52,982.51 = 21,398.29 : x
  2. Step 2: Convert to fraction form
    38,397.78/52,982.51 = 21,398.29/x
  3. Step 3: Cross multiply
    38,397.78x = 52,982.51 × 21,398.29
  4. Step 4: Simplify right side
    38,397.78x = 1,133,735,192.87
  5. Step 5: Solve for x
    x = 1,133,735,192.87/38,397.78
  6. Step 6: Final answer
    x = 29,526.06

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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.