Home / 29,520.80-40,738.56-16,945.28

Finding the Fourth Proportional to 29,520.80, 40,738.56 and 16,945.28

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Solution

The fourth proportional to 29,520.80, 40,738.56 and 16,945.28 is: 23,384.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,520.80 : 40,738.56 = 16,945.28 : x
  2. Step 2: Convert to fraction form
    29,520.80/40,738.56 = 16,945.28/x
  3. Step 3: Cross multiply
    29,520.80x = 40,738.56 × 16,945.28
  4. Step 4: Simplify right side
    29,520.80x = 690,326,306.00
  5. Step 5: Solve for x
    x = 690,326,306.00/29,520.80
  6. Step 6: Final answer
    x = 23,384.40

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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.