Home / 37,580.76-51,861.28-20,813.76

Finding the Fourth Proportional to 37,580.76, 51,861.28 and 20,813.76

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Solution

The fourth proportional to 37,580.76, 51,861.28 and 20,813.76 is: 28,722.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,580.76 : 51,861.28 = 20,813.76 : x
  2. Step 2: Convert to fraction form
    37,580.76/51,861.28 = 20,813.76/x
  3. Step 3: Cross multiply
    37,580.76x = 51,861.28 × 20,813.76
  4. Step 4: Simplify right side
    37,580.76x = 1,079,428,235.21
  5. Step 5: Solve for x
    x = 1,079,428,235.21/37,580.76
  6. Step 6: Final answer
    x = 28,722.90

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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.