Home / 37,431.80-51,653.67-20,432.66

Finding the Fourth Proportional to 37,431.80, 51,653.67 and 20,432.66

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Solution

The fourth proportional to 37,431.80, 51,653.67 and 20,432.66 is: 28,195.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,431.80 : 51,653.67 = 20,432.66 : x
  2. Step 2: Convert to fraction form
    37,431.80/51,653.67 = 20,432.66/x
  3. Step 3: Cross multiply
    37,431.80x = 51,653.67 × 20,432.66
  4. Step 4: Simplify right side
    37,431.80x = 1,055,421,876.86
  5. Step 5: Solve for x
    x = 1,055,421,876.86/37,431.80
  6. Step 6: Final answer
    x = 28,195.86

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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.