Home / 39,256.28-54,173.21-21,350.90

Finding the Fourth Proportional to 39,256.28, 54,173.21 and 21,350.90

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Solution

The fourth proportional to 39,256.28, 54,173.21 and 21,350.90 is: 29,463.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,256.28 : 54,173.21 = 21,350.90 : x
  2. Step 2: Convert to fraction form
    39,256.28/54,173.21 = 21,350.90/x
  3. Step 3: Cross multiply
    39,256.28x = 54,173.21 × 21,350.90
  4. Step 4: Simplify right side
    39,256.28x = 1,156,646,411.77
  5. Step 5: Solve for x
    x = 1,156,646,411.77/39,256.28
  6. Step 6: Final answer
    x = 29,463.99

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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.