Home / 28,217.70-42,337.35-12,624.12

Finding the Fourth Proportional to 28,217.70, 42,337.35 and 12,624.12

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Solution

The fourth proportional to 28,217.70, 42,337.35 and 12,624.12 is: 18,941.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,217.70 : 42,337.35 = 12,624.12 : x
  2. Step 2: Convert to fraction form
    28,217.70/42,337.35 = 12,624.12/x
  3. Step 3: Cross multiply
    28,217.70x = 42,337.35 × 12,624.12
  4. Step 4: Simplify right side
    28,217.70x = 534,471,786.88
  5. Step 5: Solve for x
    x = 534,471,786.88/28,217.70
  6. Step 6: Final answer
    x = 18,941.01

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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.