Home / 20,177.74-27,842.28-11,225.35

Finding the Fourth Proportional to 20,177.74, 27,842.28 and 11,225.35

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Solution

The fourth proportional to 20,177.74, 27,842.28 and 11,225.35 is: 15,489.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,177.74 : 27,842.28 = 11,225.35 : x
  2. Step 2: Convert to fraction form
    20,177.74/27,842.28 = 11,225.35/x
  3. Step 3: Cross multiply
    20,177.74x = 27,842.28 × 11,225.35
  4. Step 4: Simplify right side
    20,177.74x = 312,539,337.80
  5. Step 5: Solve for x
    x = 312,539,337.80/20,177.74
  6. Step 6: Final answer
    x = 15,489.31

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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.