Home / 19,919.28-29,842.47-9,397.98

Finding the Fourth Proportional to 19,919.28, 29,842.47 and 9,397.98

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Solution

The fourth proportional to 19,919.28, 29,842.47 and 9,397.98 is: 14,079.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,919.28 : 29,842.47 = 9,397.98 : x
  2. Step 2: Convert to fraction form
    19,919.28/29,842.47 = 9,397.98/x
  3. Step 3: Cross multiply
    19,919.28x = 29,842.47 × 9,397.98
  4. Step 4: Simplify right side
    19,919.28x = 280,458,936.21
  5. Step 5: Solve for x
    x = 280,458,936.21/19,919.28
  6. Step 6: Final answer
    x = 14,079.77

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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.