Home / 33,124.89-45,712.53-18,978.63

Finding the Fourth Proportional to 33,124.89, 45,712.53 and 18,978.63

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Solution

The fourth proportional to 33,124.89, 45,712.53 and 18,978.63 is: 26,190.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,124.89 : 45,712.53 = 18,978.63 : x
  2. Step 2: Convert to fraction form
    33,124.89/45,712.53 = 18,978.63/x
  3. Step 3: Cross multiply
    33,124.89x = 45,712.53 × 18,978.63
  4. Step 4: Simplify right side
    33,124.89x = 867,561,193.23
  5. Step 5: Solve for x
    x = 867,561,193.23/33,124.89
  6. Step 6: Final answer
    x = 26,190.61

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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.