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Finding the Fourth Proportional to 56,363.28, 84,558.96 and 16,921.12

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Solution

The fourth proportional to 56,363.28, 84,558.96 and 16,921.12 is: 25,385.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,363.28 : 84,558.96 = 16,921.12 : x
  2. Step 2: Convert to fraction form
    56,363.28/84,558.96 = 16,921.12/x
  3. Step 3: Cross multiply
    56,363.28x = 84,558.96 × 16,921.12
  4. Step 4: Simplify right side
    56,363.28x = 1,430,832,309.24
  5. Step 5: Solve for x
    x = 1,430,832,309.24/56,363.28
  6. Step 6: Final answer
    x = 25,385.90

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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.