Home / 36,679.64-55,041.32-13,307.90

Finding the Fourth Proportional to 36,679.64, 55,041.32 and 13,307.90

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Solution

The fourth proportional to 36,679.64, 55,041.32 and 13,307.90 is: 19,969.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,679.64 : 55,041.32 = 13,307.90 : x
  2. Step 2: Convert to fraction form
    36,679.64/55,041.32 = 13,307.90/x
  3. Step 3: Cross multiply
    36,679.64x = 55,041.32 × 13,307.90
  4. Step 4: Simplify right side
    36,679.64x = 732,484,140.49
  5. Step 5: Solve for x
    x = 732,484,140.49/36,679.64
  6. Step 6: Final answer
    x = 19,969.78

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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.