Home / 19,382.40-29,080.16-9,521.92

Finding the Fourth Proportional to 19,382.40, 29,080.16 and 9,521.92

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Solution

The fourth proportional to 19,382.40, 29,080.16 and 9,521.92 is: 14,286.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,382.40 : 29,080.16 = 9,521.92 : x
  2. Step 2: Convert to fraction form
    19,382.40/29,080.16 = 9,521.92/x
  3. Step 3: Cross multiply
    19,382.40x = 29,080.16 × 9,521.92
  4. Step 4: Simplify right side
    19,382.40x = 276,898,957.11
  5. Step 5: Solve for x
    x = 276,898,957.11/19,382.40
  6. Step 6: Final answer
    x = 14,286.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.