Home / 20,113.15-30,034.28-16,422.59

Finding the Fourth Proportional to 20,113.15, 30,034.28 and 16,422.59

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Solution

The fourth proportional to 20,113.15, 30,034.28 and 16,422.59 is: 24,523.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,113.15 : 30,034.28 = 16,422.59 : x
  2. Step 2: Convert to fraction form
    20,113.15/30,034.28 = 16,422.59/x
  3. Step 3: Cross multiply
    20,113.15x = 30,034.28 × 16,422.59
  4. Step 4: Simplify right side
    20,113.15x = 493,240,666.39
  5. Step 5: Solve for x
    x = 493,240,666.39/20,113.15
  6. Step 6: Final answer
    x = 24,523.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.