Home / 21,523.08-32,274.90-20,842.68

Finding the Fourth Proportional to 21,523.08, 32,274.90 and 20,842.68

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Solution

The fourth proportional to 21,523.08, 32,274.90 and 20,842.68 is: 31,254.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,523.08 : 32,274.90 = 20,842.68 : x
  2. Step 2: Convert to fraction form
    21,523.08/32,274.90 = 20,842.68/x
  3. Step 3: Cross multiply
    21,523.08x = 32,274.90 × 20,842.68
  4. Step 4: Simplify right side
    21,523.08x = 672,695,412.73
  5. Step 5: Solve for x
    x = 672,695,412.73/21,523.08
  6. Step 6: Final answer
    x = 31,254.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.