Home / 19,830.24-29,761.92-10,470.24

Finding the Fourth Proportional to 19,830.24, 29,761.92 and 10,470.24

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Solution

The fourth proportional to 19,830.24, 29,761.92 and 10,470.24 is: 15,714.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,830.24 : 29,761.92 = 10,470.24 : x
  2. Step 2: Convert to fraction form
    19,830.24/29,761.92 = 10,470.24/x
  3. Step 3: Cross multiply
    19,830.24x = 29,761.92 × 10,470.24
  4. Step 4: Simplify right side
    19,830.24x = 311,614,445.26
  5. Step 5: Solve for x
    x = 311,614,445.26/19,830.24
  6. Step 6: Final answer
    x = 15,714.10

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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.