Home / 28,608.47-42,902.18-9,883.70

Finding the Fourth Proportional to 28,608.47, 42,902.18 and 9,883.70

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Solution

The fourth proportional to 28,608.47, 42,902.18 and 9,883.70 is: 14,821.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,608.47 : 42,902.18 = 9,883.70 : x
  2. Step 2: Convert to fraction form
    28,608.47/42,902.18 = 9,883.70/x
  3. Step 3: Cross multiply
    28,608.47x = 42,902.18 × 9,883.70
  4. Step 4: Simplify right side
    28,608.47x = 424,032,334.30
  5. Step 5: Solve for x
    x = 424,032,334.30/28,608.47
  6. Step 6: Final answer
    x = 14,821.91

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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.