Home / 36,686.40-55,029.60-19,152.15

Finding the Fourth Proportional to 36,686.40, 55,029.60 and 19,152.15

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Solution

The fourth proportional to 36,686.40, 55,029.60 and 19,152.15 is: 28,728.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,686.40 : 55,029.60 = 19,152.15 : x
  2. Step 2: Convert to fraction form
    36,686.40/55,029.60 = 19,152.15/x
  3. Step 3: Cross multiply
    36,686.40x = 55,029.60 × 19,152.15
  4. Step 4: Simplify right side
    36,686.40x = 1,053,935,153.64
  5. Step 5: Solve for x
    x = 1,053,935,153.64/36,686.40
  6. Step 6: Final answer
    x = 28,728.23

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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.