Home / 20,624.48-28,461.60-11,192.96

Finding the Fourth Proportional to 20,624.48, 28,461.60 and 11,192.96

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Solution

The fourth proportional to 20,624.48, 28,461.60 and 11,192.96 is: 15,446.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,624.48 : 28,461.60 = 11,192.96 : x
  2. Step 2: Convert to fraction form
    20,624.48/28,461.60 = 11,192.96/x
  3. Step 3: Cross multiply
    20,624.48x = 28,461.60 × 11,192.96
  4. Step 4: Simplify right side
    20,624.48x = 318,569,550.34
  5. Step 5: Solve for x
    x = 318,569,550.34/20,624.48
  6. Step 6: Final answer
    x = 15,446.19

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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.