Home / 29,235.20-40,345.60-16,657.92

Finding the Fourth Proportional to 29,235.20, 40,345.60 and 16,657.92

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Solution

The fourth proportional to 29,235.20, 40,345.60 and 16,657.92 is: 22,988.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,235.20 : 40,345.60 = 16,657.92 : x
  2. Step 2: Convert to fraction form
    29,235.20/40,345.60 = 16,657.92/x
  3. Step 3: Cross multiply
    29,235.20x = 40,345.60 × 16,657.92
  4. Step 4: Simplify right side
    29,235.20x = 672,073,777.15
  5. Step 5: Solve for x
    x = 672,073,777.15/29,235.20
  6. Step 6: Final answer
    x = 22,988.51

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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.