Home / 36,681.64-55,044.32-13,309.90

Finding the Fourth Proportional to 36,681.64, 55,044.32 and 13,309.90

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Solution

The fourth proportional to 36,681.64, 55,044.32 and 13,309.90 is: 19,972.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,681.64 : 55,044.32 = 13,309.90 : x
  2. Step 2: Convert to fraction form
    36,681.64/55,044.32 = 13,309.90/x
  3. Step 3: Cross multiply
    36,681.64x = 55,044.32 × 13,309.90
  4. Step 4: Simplify right side
    36,681.64x = 732,634,394.77
  5. Step 5: Solve for x
    x = 732,634,394.77/36,681.64
  6. Step 6: Final answer
    x = 19,972.78

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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.