Home / 20,437.35-28,201.80-11,484.15

Finding the Fourth Proportional to 20,437.35, 28,201.80 and 11,484.15

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Solution

The fourth proportional to 20,437.35, 28,201.80 and 11,484.15 is: 15,847.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,437.35 : 28,201.80 = 11,484.15 : x
  2. Step 2: Convert to fraction form
    20,437.35/28,201.80 = 11,484.15/x
  3. Step 3: Cross multiply
    20,437.35x = 28,201.80 × 11,484.15
  4. Step 4: Simplify right side
    20,437.35x = 323,873,701.47
  5. Step 5: Solve for x
    x = 323,873,701.47/20,437.35
  6. Step 6: Final answer
    x = 15,847.15

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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.