Home / 37,159.08-51,277.78-20,391.72

Finding the Fourth Proportional to 37,159.08, 51,277.78 and 20,391.72

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Solution

The fourth proportional to 37,159.08, 51,277.78 and 20,391.72 is: 28,139.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,159.08 : 51,277.78 = 20,391.72 : x
  2. Step 2: Convert to fraction form
    37,159.08/51,277.78 = 20,391.72/x
  3. Step 3: Cross multiply
    37,159.08x = 51,277.78 × 20,391.72
  4. Step 4: Simplify right side
    37,159.08x = 1,045,642,131.98
  5. Step 5: Solve for x
    x = 1,045,642,131.98/37,159.08
  6. Step 6: Final answer
    x = 28,139.61

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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.