Home / 51,657.50-71,284.29-28,991.72

Finding the Fourth Proportional to 51,657.50, 71,284.29 and 28,991.72

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Solution

The fourth proportional to 51,657.50, 71,284.29 and 28,991.72 is: 40,006.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,657.50 : 71,284.29 = 28,991.72 : x
  2. Step 2: Convert to fraction form
    51,657.50/71,284.29 = 28,991.72/x
  3. Step 3: Cross multiply
    51,657.50x = 71,284.29 × 28,991.72
  4. Step 4: Simplify right side
    51,657.50x = 2,066,654,176.08
  5. Step 5: Solve for x
    x = 2,066,654,176.08/51,657.50
  6. Step 6: Final answer
    x = 40,006.86

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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.