Home / 19,447.20-29,151.60-9,578.40

Finding the Fourth Proportional to 19,447.20, 29,151.60 and 9,578.40

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Solution

The fourth proportional to 19,447.20, 29,151.60 and 9,578.40 is: 14,358.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,447.20 : 29,151.60 = 9,578.40 : x
  2. Step 2: Convert to fraction form
    19,447.20/29,151.60 = 9,578.40/x
  3. Step 3: Cross multiply
    19,447.20x = 29,151.60 × 9,578.40
  4. Step 4: Simplify right side
    19,447.20x = 279,225,685.44
  5. Step 5: Solve for x
    x = 279,225,685.44/19,447.20
  6. Step 6: Final answer
    x = 14,358.14

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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.