Home / 39,465.45-54,463.50-21,561.30

Finding the Fourth Proportional to 39,465.45, 54,463.50 and 21,561.30

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Solution

The fourth proportional to 39,465.45, 54,463.50 and 21,561.30 is: 29,755.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,465.45 : 54,463.50 = 21,561.30 : x
  2. Step 2: Convert to fraction form
    39,465.45/54,463.50 = 21,561.30/x
  3. Step 3: Cross multiply
    39,465.45x = 54,463.50 × 21,561.30
  4. Step 4: Simplify right side
    39,465.45x = 1,174,303,862.55
  5. Step 5: Solve for x
    x = 1,174,303,862.55/39,465.45
  6. Step 6: Final answer
    x = 29,755.24

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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.