Home / 20,447.07-28,267.28-20,259.96

Finding the Fourth Proportional to 20,447.07, 28,267.28 and 20,259.96

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Solution

The fourth proportional to 20,447.07, 28,267.28 and 20,259.96 is: 28,008.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,447.07 : 28,267.28 = 20,259.96 : x
  2. Step 2: Convert to fraction form
    20,447.07/28,267.28 = 20,259.96/x
  3. Step 3: Cross multiply
    20,447.07x = 28,267.28 × 20,259.96
  4. Step 4: Simplify right side
    20,447.07x = 572,693,962.11
  5. Step 5: Solve for x
    x = 572,693,962.11/20,447.07
  6. Step 6: Final answer
    x = 28,008.61

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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.