Home / 20,494.15-28,282.02-11,541.80

Finding the Fourth Proportional to 20,494.15, 28,282.02 and 11,541.80

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Solution

The fourth proportional to 20,494.15, 28,282.02 and 11,541.80 is: 15,927.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,494.15 : 28,282.02 = 11,541.80 : x
  2. Step 2: Convert to fraction form
    20,494.15/28,282.02 = 11,541.80/x
  3. Step 3: Cross multiply
    20,494.15x = 28,282.02 × 11,541.80
  4. Step 4: Simplify right side
    20,494.15x = 326,425,489.14
  5. Step 5: Solve for x
    x = 326,425,489.14/20,494.15
  6. Step 6: Final answer
    x = 15,927.74

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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.