Home / 21,833.94-30,116.28-15,018.66

Finding the Fourth Proportional to 21,833.94, 30,116.28 and 15,018.66

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Solution

The fourth proportional to 21,833.94, 30,116.28 and 15,018.66 is: 20,715.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,833.94 : 30,116.28 = 15,018.66 : x
  2. Step 2: Convert to fraction form
    21,833.94/30,116.28 = 15,018.66/x
  3. Step 3: Cross multiply
    21,833.94x = 30,116.28 × 15,018.66
  4. Step 4: Simplify right side
    21,833.94x = 452,306,169.78
  5. Step 5: Solve for x
    x = 452,306,169.78/21,833.94
  6. Step 6: Final answer
    x = 20,715.74

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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.