Home / 28,168.84-42,294.66-15,713.20

Finding the Fourth Proportional to 28,168.84, 42,294.66 and 15,713.20

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Solution

The fourth proportional to 28,168.84, 42,294.66 and 15,713.20 is: 23,592.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,168.84 : 42,294.66 = 15,713.20 : x
  2. Step 2: Convert to fraction form
    28,168.84/42,294.66 = 15,713.20/x
  3. Step 3: Cross multiply
    28,168.84x = 42,294.66 × 15,713.20
  4. Step 4: Simplify right side
    28,168.84x = 664,584,451.51
  5. Step 5: Solve for x
    x = 664,584,451.51/28,168.84
  6. Step 6: Final answer
    x = 23,592.89

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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.