Home / 28,026.86-38,687.87-20,532.72

Finding the Fourth Proportional to 28,026.86, 38,687.87 and 20,532.72

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Solution

The fourth proportional to 28,026.86, 38,687.87 and 20,532.72 is: 28,343.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,026.86 : 38,687.87 = 20,532.72 : x
  2. Step 2: Convert to fraction form
    28,026.86/38,687.87 = 20,532.72/x
  3. Step 3: Cross multiply
    28,026.86x = 38,687.87 × 20,532.72
  4. Step 4: Simplify right side
    28,026.86x = 794,367,202.11
  5. Step 5: Solve for x
    x = 794,367,202.11/28,026.86
  6. Step 6: Final answer
    x = 28,343.07

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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.