Home / 43,324.98-64,979.28-21,116.04

Finding the Fourth Proportional to 43,324.98, 64,979.28 and 21,116.04

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Solution

The fourth proportional to 43,324.98, 64,979.28 and 21,116.04 is: 31,670.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,324.98 : 64,979.28 = 21,116.04 : x
  2. Step 2: Convert to fraction form
    43,324.98/64,979.28 = 21,116.04/x
  3. Step 3: Cross multiply
    43,324.98x = 64,979.28 × 21,116.04
  4. Step 4: Simplify right side
    43,324.98x = 1,372,105,075.65
  5. Step 5: Solve for x
    x = 1,372,105,075.65/43,324.98
  6. Step 6: Final answer
    x = 31,670.07

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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.