Home / 37,131.20-55,696.80-9,429.20

Finding the Fourth Proportional to 37,131.20, 55,696.80 and 9,429.20

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Solution

The fourth proportional to 37,131.20, 55,696.80 and 9,429.20 is: 14,143.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,131.20 : 55,696.80 = 9,429.20 : x
  2. Step 2: Convert to fraction form
    37,131.20/55,696.80 = 9,429.20/x
  3. Step 3: Cross multiply
    37,131.20x = 55,696.80 × 9,429.20
  4. Step 4: Simplify right side
    37,131.20x = 525,176,266.56
  5. Step 5: Solve for x
    x = 525,176,266.56/37,131.20
  6. Step 6: Final answer
    x = 14,143.80

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1.5x scale

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.