Home / 22,181.97-30,574.65-15,723.77

Finding the Fourth Proportional to 22,181.97, 30,574.65 and 15,723.77

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Solution

The fourth proportional to 22,181.97, 30,574.65 and 15,723.77 is: 21,672.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,181.97 : 30,574.65 = 15,723.77 : x
  2. Step 2: Convert to fraction form
    22,181.97/30,574.65 = 15,723.77/x
  3. Step 3: Cross multiply
    22,181.97x = 30,574.65 × 15,723.77
  4. Step 4: Simplify right side
    22,181.97x = 480,748,764.43
  5. Step 5: Solve for x
    x = 480,748,764.43/22,181.97
  6. Step 6: Final answer
    x = 21,672.95

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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.