Home / 45,939.20-63,403-28,044.60

Finding the Fourth Proportional to 45,939.20, 63,403 and 28,044.60

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Solution

The fourth proportional to 45,939.20, 63,403 and 28,044.60 is: 38,705.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,939.20 : 63,403 = 28,044.60 : x
  2. Step 2: Convert to fraction form
    45,939.20/63,403 = 28,044.60/x
  3. Step 3: Cross multiply
    45,939.20x = 63,403 × 28,044.60
  4. Step 4: Simplify right side
    45,939.20x = 1,778,111,773.80
  5. Step 5: Solve for x
    x = 1,778,111,773.80/45,939.20
  6. Step 6: Final answer
    x = 38,705.76

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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.