Home / 20,732.16-28,610.35-11,300.79

Finding the Fourth Proportional to 20,732.16, 28,610.35 and 11,300.79

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Solution

The fourth proportional to 20,732.16, 28,610.35 and 11,300.79 is: 15,595.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,732.16 : 28,610.35 = 11,300.79 : x
  2. Step 2: Convert to fraction form
    20,732.16/28,610.35 = 11,300.79/x
  3. Step 3: Cross multiply
    20,732.16x = 28,610.35 × 11,300.79
  4. Step 4: Simplify right side
    20,732.16x = 323,319,557.18
  5. Step 5: Solve for x
    x = 323,319,557.18/20,732.16
  6. Step 6: Final answer
    x = 15,595.07

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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.