Home / 28,207.06-42,315.46-9,488.90

Finding the Fourth Proportional to 28,207.06, 42,315.46 and 9,488.90

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Solution

The fourth proportional to 28,207.06, 42,315.46 and 9,488.90 is: 14,234.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,207.06 : 42,315.46 = 9,488.90 : x
  2. Step 2: Convert to fraction form
    28,207.06/42,315.46 = 9,488.90/x
  3. Step 3: Cross multiply
    28,207.06x = 42,315.46 × 9,488.90
  4. Step 4: Simplify right side
    28,207.06x = 401,527,250.46
  5. Step 5: Solve for x
    x = 401,527,250.46/28,207.06
  6. Step 6: Final answer
    x = 14,234.99

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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.