Home / 34,643.89-51,972.32-13,869.01

Finding the Fourth Proportional to 34,643.89, 51,972.32 and 13,869.01

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Solution

The fourth proportional to 34,643.89, 51,972.32 and 13,869.01 is: 20,806.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,643.89 : 51,972.32 = 13,869.01 : x
  2. Step 2: Convert to fraction form
    34,643.89/51,972.32 = 13,869.01/x
  3. Step 3: Cross multiply
    34,643.89x = 51,972.32 × 13,869.01
  4. Step 4: Simplify right side
    34,643.89x = 720,804,625.80
  5. Step 5: Solve for x
    x = 720,804,625.80/34,643.89
  6. Step 6: Final answer
    x = 20,806.11

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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.