Home / 33,129.84-45,720-18,023.34

Finding the Fourth Proportional to 33,129.84, 45,720 and 18,023.34

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Solution

The fourth proportional to 33,129.84, 45,720 and 18,023.34 is: 24,872.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,129.84 : 45,720 = 18,023.34 : x
  2. Step 2: Convert to fraction form
    33,129.84/45,720 = 18,023.34/x
  3. Step 3: Cross multiply
    33,129.84x = 45,720 × 18,023.34
  4. Step 4: Simplify right side
    33,129.84x = 824,027,104.80
  5. Step 5: Solve for x
    x = 824,027,104.80/33,129.84
  6. Step 6: Final answer
    x = 24,872.66

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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.