Home / 20,508.52-28,297.38-13,057.96

Finding the Fourth Proportional to 20,508.52, 28,297.38 and 13,057.96

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Solution

The fourth proportional to 20,508.52, 28,297.38 and 13,057.96 is: 18,017.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,508.52 : 28,297.38 = 13,057.96 : x
  2. Step 2: Convert to fraction form
    20,508.52/28,297.38 = 13,057.96/x
  3. Step 3: Cross multiply
    20,508.52x = 28,297.38 × 13,057.96
  4. Step 4: Simplify right side
    20,508.52x = 369,506,056.14
  5. Step 5: Solve for x
    x = 369,506,056.14/20,508.52
  6. Step 6: Final answer
    x = 18,017.20

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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.