Home / 28,248.56-42,343.68-13,446.80

Finding the Fourth Proportional to 28,248.56, 42,343.68 and 13,446.80

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Solution

The fourth proportional to 28,248.56, 42,343.68 and 13,446.80 is: 20,156.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,248.56 : 42,343.68 = 13,446.80 : x
  2. Step 2: Convert to fraction form
    28,248.56/42,343.68 = 13,446.80/x
  3. Step 3: Cross multiply
    28,248.56x = 42,343.68 × 13,446.80
  4. Step 4: Simplify right side
    28,248.56x = 569,386,996.22
  5. Step 5: Solve for x
    x = 569,386,996.22/28,248.56
  6. Step 6: Final answer
    x = 20,156.32

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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.