Home / 22,103.46-30,498.51-15,386.61

Finding the Fourth Proportional to 22,103.46, 30,498.51 and 15,386.61

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Solution

The fourth proportional to 22,103.46, 30,498.51 and 15,386.61 is: 21,230.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,103.46 : 30,498.51 = 15,386.61 : x
  2. Step 2: Convert to fraction form
    22,103.46/30,498.51 = 15,386.61/x
  3. Step 3: Cross multiply
    22,103.46x = 30,498.51 × 15,386.61
  4. Step 4: Simplify right side
    22,103.46x = 469,268,678.95
  5. Step 5: Solve for x
    x = 469,268,678.95/22,103.46
  6. Step 6: Final answer
    x = 21,230.55

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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.