Home / 39,465.28-54,463.40-21,561.95

Finding the Fourth Proportional to 39,465.28, 54,463.40 and 21,561.95

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Solution

The fourth proportional to 39,465.28, 54,463.40 and 21,561.95 is: 29,756.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,465.28 : 54,463.40 = 21,561.95 : x
  2. Step 2: Convert to fraction form
    39,465.28/54,463.40 = 21,561.95/x
  3. Step 3: Cross multiply
    39,465.28x = 54,463.40 × 21,561.95
  4. Step 4: Simplify right side
    39,465.28x = 1,174,337,107.63
  5. Step 5: Solve for x
    x = 1,174,337,107.63/39,465.28
  6. Step 6: Final answer
    x = 29,756.21

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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.