Home / 22,587.76-31,170.22-12,516.63

Finding the Fourth Proportional to 22,587.76, 31,170.22 and 12,516.63

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Solution

The fourth proportional to 22,587.76, 31,170.22 and 12,516.63 is: 17,272.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,587.76 : 31,170.22 = 12,516.63 : x
  2. Step 2: Convert to fraction form
    22,587.76/31,170.22 = 12,516.63/x
  3. Step 3: Cross multiply
    22,587.76x = 31,170.22 × 12,516.63
  4. Step 4: Simplify right side
    22,587.76x = 390,145,962.58
  5. Step 5: Solve for x
    x = 390,145,962.58/22,587.76
  6. Step 6: Final answer
    x = 17,272.45

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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.