Home / 28,343.70-42,515.55-15,902.10

Finding the Fourth Proportional to 28,343.70, 42,515.55 and 15,902.10

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Solution

The fourth proportional to 28,343.70, 42,515.55 and 15,902.10 is: 23,853.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,343.70 : 42,515.55 = 15,902.10 : x
  2. Step 2: Convert to fraction form
    28,343.70/42,515.55 = 15,902.10/x
  3. Step 3: Cross multiply
    28,343.70x = 42,515.55 × 15,902.10
  4. Step 4: Simplify right side
    28,343.70x = 676,086,527.66
  5. Step 5: Solve for x
    x = 676,086,527.66/28,343.70
  6. Step 6: Final answer
    x = 23,853.15

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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.