Home / 22,708.39-31,337.35-12,636.66

Finding the Fourth Proportional to 22,708.39, 31,337.35 and 12,636.66

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Solution

The fourth proportional to 22,708.39, 31,337.35 and 12,636.66 is: 17,438.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,708.39 : 31,337.35 = 12,636.66 : x
  2. Step 2: Convert to fraction form
    22,708.39/31,337.35 = 12,636.66/x
  3. Step 3: Cross multiply
    22,708.39x = 31,337.35 × 12,636.66
  4. Step 4: Simplify right side
    22,708.39x = 395,999,400.21
  5. Step 5: Solve for x
    x = 395,999,400.21/22,708.39
  6. Step 6: Final answer
    x = 17,438.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.