Home / 20,714.67-28,587.47-15,601.17

Finding the Fourth Proportional to 20,714.67, 28,587.47 and 15,601.17

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Solution

The fourth proportional to 20,714.67, 28,587.47 and 15,601.17 is: 21,530.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,714.67 : 28,587.47 = 15,601.17 : x
  2. Step 2: Convert to fraction form
    20,714.67/28,587.47 = 15,601.17/x
  3. Step 3: Cross multiply
    20,714.67x = 28,587.47 × 15,601.17
  4. Step 4: Simplify right side
    20,714.67x = 445,997,979.34
  5. Step 5: Solve for x
    x = 445,997,979.34/20,714.67
  6. Step 6: Final answer
    x = 21,530.54

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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.