Home / 20,849.08-31,278.27-9,749.71

Finding the Fourth Proportional to 20,849.08, 31,278.27 and 9,749.71

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Solution

The fourth proportional to 20,849.08, 31,278.27 and 9,749.71 is: 14,626.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,849.08 : 31,278.27 = 9,749.71 : x
  2. Step 2: Convert to fraction form
    20,849.08/31,278.27 = 9,749.71/x
  3. Step 3: Cross multiply
    20,849.08x = 31,278.27 × 9,749.71
  4. Step 4: Simplify right side
    20,849.08x = 304,954,061.80
  5. Step 5: Solve for x
    x = 304,954,061.80/20,849.08
  6. Step 6: Final answer
    x = 14,626.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.