Home / 27,909.33-38,515.20-15,971.94

Finding the Fourth Proportional to 27,909.33, 38,515.20 and 15,971.94

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Solution

The fourth proportional to 27,909.33, 38,515.20 and 15,971.94 is: 22,041.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,909.33 : 38,515.20 = 15,971.94 : x
  2. Step 2: Convert to fraction form
    27,909.33/38,515.20 = 15,971.94/x
  3. Step 3: Cross multiply
    27,909.33x = 38,515.20 × 15,971.94
  4. Step 4: Simplify right side
    27,909.33x = 615,162,463.49
  5. Step 5: Solve for x
    x = 615,162,463.49/27,909.33
  6. Step 6: Final answer
    x = 22,041.46

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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.