Home / 31,696.12-47,557.51-13,917.63

Finding the Fourth Proportional to 31,696.12, 47,557.51 and 13,917.63

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Solution

The fourth proportional to 31,696.12, 47,557.51 and 13,917.63 is: 20,882.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,696.12 : 47,557.51 = 13,917.63 : x
  2. Step 2: Convert to fraction form
    31,696.12/47,557.51 = 13,917.63/x
  3. Step 3: Cross multiply
    31,696.12x = 47,557.51 × 13,917.63
  4. Step 4: Simplify right side
    31,696.12x = 661,887,793.11
  5. Step 5: Solve for x
    x = 661,887,793.11/31,696.12
  6. Step 6: Final answer
    x = 20,882.30

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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.