Home / 37,187.52-51,319.96-20,420.52

Finding the Fourth Proportional to 37,187.52, 51,319.96 and 20,420.52

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Solution

The fourth proportional to 37,187.52, 51,319.96 and 20,420.52 is: 28,180.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,187.52 : 51,319.96 = 20,420.52 : x
  2. Step 2: Convert to fraction form
    37,187.52/51,319.96 = 20,420.52/x
  3. Step 3: Cross multiply
    37,187.52x = 51,319.96 × 20,420.52
  4. Step 4: Simplify right side
    37,187.52x = 1,047,980,269.58
  5. Step 5: Solve for x
    x = 1,047,980,269.58/37,187.52
  6. Step 6: Final answer
    x = 28,180.97

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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.