Home / 18,068.48-24,879.12-15,817.76

Finding the Fourth Proportional to 18,068.48, 24,879.12 and 15,817.76

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Solution

The fourth proportional to 18,068.48, 24,879.12 and 15,817.76 is: 21,780.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,068.48 : 24,879.12 = 15,817.76 : x
  2. Step 2: Convert to fraction form
    18,068.48/24,879.12 = 15,817.76/x
  3. Step 3: Cross multiply
    18,068.48x = 24,879.12 × 15,817.76
  4. Step 4: Simplify right side
    18,068.48x = 393,531,949.17
  5. Step 5: Solve for x
    x = 393,531,949.17/18,068.48
  6. Step 6: Final answer
    x = 21,780.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.