Home / 41,130.75-61,696.13-13,428.75

Finding the Fourth Proportional to 41,130.75, 61,696.13 and 13,428.75

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Solution

The fourth proportional to 41,130.75, 61,696.13 and 13,428.75 is: 20,143.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    41,130.75 : 61,696.13 = 13,428.75 : x
  2. Step 2: Convert to fraction form
    41,130.75/61,696.13 = 13,428.75/x
  3. Step 3: Cross multiply
    41,130.75x = 61,696.13 × 13,428.75
  4. Step 4: Simplify right side
    41,130.75x = 828,501,905.74
  5. Step 5: Solve for x
    x = 828,501,905.74/41,130.75
  6. Step 6: Final answer
    x = 20,143.13

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.