Home / 38,390.02-57,601.76-13,447.96

Finding the Fourth Proportional to 38,390.02, 57,601.76 and 13,447.96

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Solution

The fourth proportional to 38,390.02, 57,601.76 and 13,447.96 is: 20,177.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,390.02 : 57,601.76 = 13,447.96 : x
  2. Step 2: Convert to fraction form
    38,390.02/57,601.76 = 13,447.96/x
  3. Step 3: Cross multiply
    38,390.02x = 57,601.76 × 13,447.96
  4. Step 4: Simplify right side
    38,390.02x = 774,626,164.41
  5. Step 5: Solve for x
    x = 774,626,164.41/38,390.02
  6. Step 6: Final answer
    x = 20,177.80

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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.