Home / 28,902.30-43,353.45-18,923.10

Finding the Fourth Proportional to 28,902.30, 43,353.45 and 18,923.10

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Solution

The fourth proportional to 28,902.30, 43,353.45 and 18,923.10 is: 28,384.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,902.30 : 43,353.45 = 18,923.10 : x
  2. Step 2: Convert to fraction form
    28,902.30/43,353.45 = 18,923.10/x
  3. Step 3: Cross multiply
    28,902.30x = 43,353.45 × 18,923.10
  4. Step 4: Simplify right side
    28,902.30x = 820,381,669.70
  5. Step 5: Solve for x
    x = 820,381,669.70/28,902.30
  6. Step 6: Final answer
    x = 28,384.65

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Similar ratio
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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.