Home / 29,539.72-40,754.52-18,935.20

Finding the Fourth Proportional to 29,539.72, 40,754.52 and 18,935.20

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Solution

The fourth proportional to 29,539.72, 40,754.52 and 18,935.20 is: 26,123.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,539.72 : 40,754.52 = 18,935.20 : x
  2. Step 2: Convert to fraction form
    29,539.72/40,754.52 = 18,935.20/x
  3. Step 3: Cross multiply
    29,539.72x = 40,754.52 × 18,935.20
  4. Step 4: Simplify right side
    29,539.72x = 771,694,987.10
  5. Step 5: Solve for x
    x = 771,694,987.10/29,539.72
  6. Step 6: Final answer
    x = 26,123.98

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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.