Home / 19,790.24-29,685.28-8,103.47

Finding the Fourth Proportional to 19,790.24, 29,685.28 and 8,103.47

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Solution

The fourth proportional to 19,790.24, 29,685.28 and 8,103.47 is: 12,155.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,790.24 : 29,685.28 = 8,103.47 : x
  2. Step 2: Convert to fraction form
    19,790.24/29,685.28 = 8,103.47/x
  3. Step 3: Cross multiply
    19,790.24x = 29,685.28 × 8,103.47
  4. Step 4: Simplify right side
    19,790.24x = 240,553,775.92
  5. Step 5: Solve for x
    x = 240,553,775.92/19,790.24
  6. Step 6: Final answer
    x = 12,155.17

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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.