Home / 45,338.98-68,029.26-20,385.58

Finding the Fourth Proportional to 45,338.98, 68,029.26 and 20,385.58

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Solution

The fourth proportional to 45,338.98, 68,029.26 and 20,385.58 is: 30,587.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,338.98 : 68,029.26 = 20,385.58 : x
  2. Step 2: Convert to fraction form
    45,338.98/68,029.26 = 20,385.58/x
  3. Step 3: Cross multiply
    45,338.98x = 68,029.26 × 20,385.58
  4. Step 4: Simplify right side
    45,338.98x = 1,386,815,922.07
  5. Step 5: Solve for x
    x = 1,386,815,922.07/45,338.98
  6. Step 6: Final answer
    x = 30,587.72

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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.