Home / 38,526.81-53,167.20-21,531.34

Finding the Fourth Proportional to 38,526.81, 53,167.20 and 21,531.34

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Solution

The fourth proportional to 38,526.81, 53,167.20 and 21,531.34 is: 29,713.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,526.81 : 53,167.20 = 21,531.34 : x
  2. Step 2: Convert to fraction form
    38,526.81/53,167.20 = 21,531.34/x
  3. Step 3: Cross multiply
    38,526.81x = 53,167.20 × 21,531.34
  4. Step 4: Simplify right side
    38,526.81x = 1,144,761,060.05
  5. Step 5: Solve for x
    x = 1,144,761,060.05/38,526.81
  6. Step 6: Final answer
    x = 29,713.36

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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.