Home / 45,348.83-68,023.40-13,759.16

Finding the Fourth Proportional to 45,348.83, 68,023.40 and 13,759.16

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Solution

The fourth proportional to 45,348.83, 68,023.40 and 13,759.16 is: 20,638.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,348.83 : 68,023.40 = 13,759.16 : x
  2. Step 2: Convert to fraction form
    45,348.83/68,023.40 = 13,759.16/x
  3. Step 3: Cross multiply
    45,348.83x = 68,023.40 × 13,759.16
  4. Step 4: Simplify right side
    45,348.83x = 935,944,538.62
  5. Step 5: Solve for x
    x = 935,944,538.62/45,348.83
  6. Step 6: Final answer
    x = 20,638.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.