Home / 39,337.28-54,283.50-21,431.21

Finding the Fourth Proportional to 39,337.28, 54,283.50 and 21,431.21

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Solution

The fourth proportional to 39,337.28, 54,283.50 and 21,431.21 is: 29,574.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,337.28 : 54,283.50 = 21,431.21 : x
  2. Step 2: Convert to fraction form
    39,337.28/54,283.50 = 21,431.21/x
  3. Step 3: Cross multiply
    39,337.28x = 54,283.50 × 21,431.21
  4. Step 4: Simplify right side
    39,337.28x = 1,163,360,816.62
  5. Step 5: Solve for x
    x = 1,163,360,816.62/39,337.28
  6. Step 6: Final answer
    x = 29,574.01

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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.