Home / 39,332.53-54,278.26-21,427.75

Finding the Fourth Proportional to 39,332.53, 54,278.26 and 21,427.75

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Solution

The fourth proportional to 39,332.53, 54,278.26 and 21,427.75 is: 29,569.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,332.53 : 54,278.26 = 21,427.75 : x
  2. Step 2: Convert to fraction form
    39,332.53/54,278.26 = 21,427.75/x
  3. Step 3: Cross multiply
    39,332.53x = 54,278.26 × 21,427.75
  4. Step 4: Simplify right side
    39,332.53x = 1,163,060,985.72
  5. Step 5: Solve for x
    x = 1,163,060,985.72/39,332.53
  6. Step 6: Final answer
    x = 29,569.95

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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.