Home / 44,285.88-66,429.06-13,121.40

Finding the Fourth Proportional to 44,285.88, 66,429.06 and 13,121.40

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Solution

The fourth proportional to 44,285.88, 66,429.06 and 13,121.40 is: 19,682.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    44,285.88 : 66,429.06 = 13,121.40 : x
  2. Step 2: Convert to fraction form
    44,285.88/66,429.06 = 13,121.40/x
  3. Step 3: Cross multiply
    44,285.88x = 66,429.06 × 13,121.40
  4. Step 4: Simplify right side
    44,285.88x = 871,642,267.88
  5. Step 5: Solve for x
    x = 871,642,267.88/44,285.88
  6. Step 6: Final answer
    x = 19,682.17

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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.