Home / 30,764.28-42,454.68-16,617.12

Finding the Fourth Proportional to 30,764.28, 42,454.68 and 16,617.12

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Solution

The fourth proportional to 30,764.28, 42,454.68 and 16,617.12 is: 22,931.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,764.28 : 42,454.68 = 16,617.12 : x
  2. Step 2: Convert to fraction form
    30,764.28/42,454.68 = 16,617.12/x
  3. Step 3: Cross multiply
    30,764.28x = 42,454.68 × 16,617.12
  4. Step 4: Simplify right side
    30,764.28x = 705,474,512.12
  5. Step 5: Solve for x
    x = 705,474,512.12/30,764.28
  6. Step 6: Final answer
    x = 22,931.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.