Home / 27,917.80-38,525.76-15,980.74

Finding the Fourth Proportional to 27,917.80, 38,525.76 and 15,980.74

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Solution

The fourth proportional to 27,917.80, 38,525.76 and 15,980.74 is: 22,052.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,917.80 : 38,525.76 = 15,980.74 : x
  2. Step 2: Convert to fraction form
    27,917.80/38,525.76 = 15,980.74/x
  3. Step 3: Cross multiply
    27,917.80x = 38,525.76 × 15,980.74
  4. Step 4: Simplify right side
    27,917.80x = 615,670,153.86
  5. Step 5: Solve for x
    x = 615,670,153.86/27,917.80
  6. Step 6: Final answer
    x = 22,052.96

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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.