Home / 28,011.06-42,023.88-12,425.04

Finding the Fourth Proportional to 28,011.06, 42,023.88 and 12,425.04

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Solution

The fourth proportional to 28,011.06, 42,023.88 and 12,425.04 is: 18,640.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,011.06 : 42,023.88 = 12,425.04 : x
  2. Step 2: Convert to fraction form
    28,011.06/42,023.88 = 12,425.04/x
  3. Step 3: Cross multiply
    28,011.06x = 42,023.88 × 12,425.04
  4. Step 4: Simplify right side
    28,011.06x = 522,148,389.96
  5. Step 5: Solve for x
    x = 522,148,389.96/28,011.06
  6. Step 6: Final answer
    x = 18,640.79

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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.