Home / 28,211.56-42,306.39-15,056.76

Finding the Fourth Proportional to 28,211.56, 42,306.39 and 15,056.76

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Solution

The fourth proportional to 28,211.56, 42,306.39 and 15,056.76 is: 22,579.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,211.56 : 42,306.39 = 15,056.76 : x
  2. Step 2: Convert to fraction form
    28,211.56/42,306.39 = 15,056.76/x
  3. Step 3: Cross multiply
    28,211.56x = 42,306.39 × 15,056.76
  4. Step 4: Simplify right side
    28,211.56x = 636,997,160.70
  5. Step 5: Solve for x
    x = 636,997,160.70/28,211.56
  6. Step 6: Final answer
    x = 22,579.30

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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.