Home / 20,699.04-28,566.36-11,624.20

Finding the Fourth Proportional to 20,699.04, 28,566.36 and 11,624.20

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Solution

The fourth proportional to 20,699.04, 28,566.36 and 11,624.20 is: 16,042.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,699.04 : 28,566.36 = 11,624.20 : x
  2. Step 2: Convert to fraction form
    20,699.04/28,566.36 = 11,624.20/x
  3. Step 3: Cross multiply
    20,699.04x = 28,566.36 × 11,624.20
  4. Step 4: Simplify right side
    20,699.04x = 332,061,081.91
  5. Step 5: Solve for x
    x = 332,061,081.91/20,699.04
  6. Step 6: Final answer
    x = 16,042.34

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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.