Home / 31,503.75-47,260.50-11,785.11

Finding the Fourth Proportional to 31,503.75, 47,260.50 and 11,785.11

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Solution

The fourth proportional to 31,503.75, 47,260.50 and 11,785.11 is: 17,679.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,503.75 : 47,260.50 = 11,785.11 : x
  2. Step 2: Convert to fraction form
    31,503.75/47,260.50 = 11,785.11/x
  3. Step 3: Cross multiply
    31,503.75x = 47,260.50 × 11,785.11
  4. Step 4: Simplify right side
    31,503.75x = 556,970,191.16
  5. Step 5: Solve for x
    x = 556,970,191.16/31,503.75
  6. Step 6: Final answer
    x = 17,679.49

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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.