Home / 39,832.50-54,972.51-21,931.14

Finding the Fourth Proportional to 39,832.50, 54,972.51 and 21,931.14

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Solution

The fourth proportional to 39,832.50, 54,972.51 and 21,931.14 is: 30,266.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,832.50 : 54,972.51 = 21,931.14 : x
  2. Step 2: Convert to fraction form
    39,832.50/54,972.51 = 21,931.14/x
  3. Step 3: Cross multiply
    39,832.50x = 54,972.51 × 21,931.14
  4. Step 4: Simplify right side
    39,832.50x = 1,205,609,812.96
  5. Step 5: Solve for x
    x = 1,205,609,812.96/39,832.50
  6. Step 6: Final answer
    x = 30,266.99

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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.