Home / 27,614.86-38,132.88-20,528.98

Finding the Fourth Proportional to 27,614.86, 38,132.88 and 20,528.98

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Solution

The fourth proportional to 27,614.86, 38,132.88 and 20,528.98 is: 28,348.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,614.86 : 38,132.88 = 20,528.98 : x
  2. Step 2: Convert to fraction form
    27,614.86/38,132.88 = 20,528.98/x
  3. Step 3: Cross multiply
    27,614.86x = 38,132.88 × 20,528.98
  4. Step 4: Simplify right side
    27,614.86x = 782,828,958.55
  5. Step 5: Solve for x
    x = 782,828,958.55/27,614.86
  6. Step 6: Final answer
    x = 28,348.11

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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.