Home / 31,406.76-47,102.85-9,214.18

Finding the Fourth Proportional to 31,406.76, 47,102.85 and 9,214.18

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Solution

The fourth proportional to 31,406.76, 47,102.85 and 9,214.18 is: 13,819.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,406.76 : 47,102.85 = 9,214.18 : x
  2. Step 2: Convert to fraction form
    31,406.76/47,102.85 = 9,214.18/x
  3. Step 3: Cross multiply
    31,406.76x = 47,102.85 × 9,214.18
  4. Step 4: Simplify right side
    31,406.76x = 434,014,020.66
  5. Step 5: Solve for x
    x = 434,014,020.66/31,406.76
  6. Step 6: Final answer
    x = 13,819.13

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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.