Home / 28,569.60-42,857.28-9,847.17

Finding the Fourth Proportional to 28,569.60, 42,857.28 and 9,847.17

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Solution

The fourth proportional to 28,569.60, 42,857.28 and 9,847.17 is: 14,771.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,569.60 : 42,857.28 = 9,847.17 : x
  2. Step 2: Convert to fraction form
    28,569.60/42,857.28 = 9,847.17/x
  3. Step 3: Cross multiply
    28,569.60x = 42,857.28 × 9,847.17
  4. Step 4: Simplify right side
    28,569.60x = 422,022,921.90
  5. Step 5: Solve for x
    x = 422,022,921.90/28,569.60
  6. Step 6: Final answer
    x = 14,771.75

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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.