Home / 28,156.92-42,203.18-13,344.86

Finding the Fourth Proportional to 28,156.92, 42,203.18 and 13,344.86

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Solution

The fourth proportional to 28,156.92, 42,203.18 and 13,344.86 is: 20,002.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,156.92 : 42,203.18 = 13,344.86 : x
  2. Step 2: Convert to fraction form
    28,156.92/42,203.18 = 13,344.86/x
  3. Step 3: Cross multiply
    28,156.92x = 42,203.18 × 13,344.86
  4. Step 4: Simplify right side
    28,156.92x = 563,195,528.65
  5. Step 5: Solve for x
    x = 563,195,528.65/28,156.92
  6. Step 6: Final answer
    x = 20,002.03

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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.