Home / 37,085.72-51,177.90-20,318.68

Finding the Fourth Proportional to 37,085.72, 51,177.90 and 20,318.68

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Solution

The fourth proportional to 37,085.72, 51,177.90 and 20,318.68 is: 28,039.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,085.72 : 51,177.90 = 20,318.68 : x
  2. Step 2: Convert to fraction form
    37,085.72/51,177.90 = 20,318.68/x
  3. Step 3: Cross multiply
    37,085.72x = 51,177.90 × 20,318.68
  4. Step 4: Simplify right side
    37,085.72x = 1,039,867,373.17
  5. Step 5: Solve for x
    x = 1,039,867,373.17/37,085.72
  6. Step 6: Final answer
    x = 28,039.56

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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.