Home / 28,600.12-42,914.86-13,624.20

Finding the Fourth Proportional to 28,600.12, 42,914.86 and 13,624.20

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Solution

The fourth proportional to 28,600.12, 42,914.86 and 13,624.20 is: 20,443.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,600.12 : 42,914.86 = 13,624.20 : x
  2. Step 2: Convert to fraction form
    28,600.12/42,914.86 = 13,624.20/x
  3. Step 3: Cross multiply
    28,600.12x = 42,914.86 × 13,624.20
  4. Step 4: Simplify right side
    28,600.12x = 584,680,635.61
  5. Step 5: Solve for x
    x = 584,680,635.61/28,600.12
  6. Step 6: Final answer
    x = 20,443.29

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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.