Home / 28,192.52-42,304.98-12,608.12

Finding the Fourth Proportional to 28,192.52, 42,304.98 and 12,608.12

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Solution

The fourth proportional to 28,192.52, 42,304.98 and 12,608.12 is: 18,919.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,192.52 : 42,304.98 = 12,608.12 : x
  2. Step 2: Convert to fraction form
    28,192.52/42,304.98 = 12,608.12/x
  3. Step 3: Cross multiply
    28,192.52x = 42,304.98 × 12,608.12
  4. Step 4: Simplify right side
    28,192.52x = 533,386,264.44
  5. Step 5: Solve for x
    x = 533,386,264.44/28,192.52
  6. Step 6: Final answer
    x = 18,919.42

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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.