Home / 31,447.96-47,154.86-15,618.26

Finding the Fourth Proportional to 31,447.96, 47,154.86 and 15,618.26

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Solution

The fourth proportional to 31,447.96, 47,154.86 and 15,618.26 is: 23,418.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,447.96 : 47,154.86 = 15,618.26 : x
  2. Step 2: Convert to fraction form
    31,447.96/47,154.86 = 15,618.26/x
  3. Step 3: Cross multiply
    31,447.96x = 47,154.86 × 15,618.26
  4. Step 4: Simplify right side
    31,447.96x = 736,476,863.74
  5. Step 5: Solve for x
    x = 736,476,863.74/31,447.96
  6. Step 6: Final answer
    x = 23,418.91

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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.