Home / 28,165.60-42,253.41-9,451.71

Finding the Fourth Proportional to 28,165.60, 42,253.41 and 9,451.71

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Solution

The fourth proportional to 28,165.60, 42,253.41 and 9,451.71 is: 14,179.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,165.60 : 42,253.41 = 9,451.71 : x
  2. Step 2: Convert to fraction form
    28,165.60/42,253.41 = 9,451.71/x
  3. Step 3: Cross multiply
    28,165.60x = 42,253.41 × 9,451.71
  4. Step 4: Simplify right side
    28,165.60x = 399,366,977.83
  5. Step 5: Solve for x
    x = 399,366,977.83/28,165.60
  6. Step 6: Final answer
    x = 14,179.25

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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.