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Finding the Fourth Proportional to 13,435.92, 20,152.28 and 3,575.92

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Solution

The fourth proportional to 13,435.92, 20,152.28 and 3,575.92 is: 5,363.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,435.92 : 20,152.28 = 3,575.92 : x
  2. Step 2: Convert to fraction form
    13,435.92/20,152.28 = 3,575.92/x
  3. Step 3: Cross multiply
    13,435.92x = 20,152.28 × 3,575.92
  4. Step 4: Simplify right side
    13,435.92x = 72,062,941.10
  5. Step 5: Solve for x
    x = 72,062,941.10/13,435.92
  6. Step 6: Final answer
    x = 5,363.45

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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.