Home / 51,478.93-71,042.13-28,817.36

Finding the Fourth Proportional to 51,478.93, 71,042.13 and 28,817.36

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Solution

The fourth proportional to 51,478.93, 71,042.13 and 28,817.36 is: 39,768.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,478.93 : 71,042.13 = 28,817.36 : x
  2. Step 2: Convert to fraction form
    51,478.93/71,042.13 = 28,817.36/x
  3. Step 3: Cross multiply
    51,478.93x = 71,042.13 × 28,817.36
  4. Step 4: Simplify right side
    51,478.93x = 2,047,246,635.38
  5. Step 5: Solve for x
    x = 2,047,246,635.38/51,478.93
  6. Step 6: Final answer
    x = 39,768.63

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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.