Home / 37,211.72-51,352.98-20,445.80

Finding the Fourth Proportional to 37,211.72, 51,352.98 and 20,445.80

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Solution

The fourth proportional to 37,211.72, 51,352.98 and 20,445.80 is: 28,215.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,211.72 : 51,352.98 = 20,445.80 : x
  2. Step 2: Convert to fraction form
    37,211.72/51,352.98 = 20,445.80/x
  3. Step 3: Cross multiply
    37,211.72x = 51,352.98 × 20,445.80
  4. Step 4: Simplify right side
    37,211.72x = 1,049,952,758.48
  5. Step 5: Solve for x
    x = 1,049,952,758.48/37,211.72
  6. Step 6: Final answer
    x = 28,215.65

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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.