Home / 30,060.28-45,061.12-12,535.12

Finding the Fourth Proportional to 30,060.28, 45,061.12 and 12,535.12

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Solution

The fourth proportional to 30,060.28, 45,061.12 and 12,535.12 is: 18,790.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,060.28 : 45,061.12 = 12,535.12 : x
  2. Step 2: Convert to fraction form
    30,060.28/45,061.12 = 12,535.12/x
  3. Step 3: Cross multiply
    30,060.28x = 45,061.12 × 12,535.12
  4. Step 4: Simplify right side
    30,060.28x = 564,846,546.53
  5. Step 5: Solve for x
    x = 564,846,546.53/30,060.28
  6. Step 6: Final answer
    x = 18,790.46

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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.