Home / 27,654.81-38,163.15-15,079.56

Finding the Fourth Proportional to 27,654.81, 38,163.15 and 15,079.56

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Solution

The fourth proportional to 27,654.81, 38,163.15 and 15,079.56 is: 20,809.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,654.81 : 38,163.15 = 15,079.56 : x
  2. Step 2: Convert to fraction form
    27,654.81/38,163.15 = 15,079.56/x
  3. Step 3: Cross multiply
    27,654.81x = 38,163.15 × 15,079.56
  4. Step 4: Simplify right side
    27,654.81x = 575,483,510.21
  5. Step 5: Solve for x
    x = 575,483,510.21/27,654.81
  6. Step 6: Final answer
    x = 20,809.53

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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.