Home / 22,396.80-30,901.86-12,959.76

Finding the Fourth Proportional to 22,396.80, 30,901.86 and 12,959.76

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Solution

The fourth proportional to 22,396.80, 30,901.86 and 12,959.76 is: 17,881.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,396.80 : 30,901.86 = 12,959.76 : x
  2. Step 2: Convert to fraction form
    22,396.80/30,901.86 = 12,959.76/x
  3. Step 3: Cross multiply
    22,396.80x = 30,901.86 × 12,959.76
  4. Step 4: Simplify right side
    22,396.80x = 400,480,689.15
  5. Step 5: Solve for x
    x = 400,480,689.15/22,396.80
  6. Step 6: Final answer
    x = 17,881.16

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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.