Home / 37,687.20-56,530.80-11,389.20

Finding the Fourth Proportional to 37,687.20, 56,530.80 and 11,389.20

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Solution

The fourth proportional to 37,687.20, 56,530.80 and 11,389.20 is: 17,083.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,687.20 : 56,530.80 = 11,389.20 : x
  2. Step 2: Convert to fraction form
    37,687.20/56,530.80 = 11,389.20/x
  3. Step 3: Cross multiply
    37,687.20x = 56,530.80 × 11,389.20
  4. Step 4: Simplify right side
    37,687.20x = 643,840,587.36
  5. Step 5: Solve for x
    x = 643,840,587.36/37,687.20
  6. Step 6: Final answer
    x = 17,083.80

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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.