Home / 31,527.61-47,279.12-13,763.71

Finding the Fourth Proportional to 31,527.61, 47,279.12 and 13,763.71

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Solution

The fourth proportional to 31,527.61, 47,279.12 and 13,763.71 is: 20,640.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,527.61 : 47,279.12 = 13,763.71 : x
  2. Step 2: Convert to fraction form
    31,527.61/47,279.12 = 13,763.71/x
  3. Step 3: Cross multiply
    31,527.61x = 47,279.12 × 13,763.71
  4. Step 4: Simplify right side
    31,527.61x = 650,735,894.75
  5. Step 5: Solve for x
    x = 650,735,894.75/31,527.61
  6. Step 6: Final answer
    x = 20,640.19

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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.