Home / 21,642.05-29,869.70-12,566.00

Finding the Fourth Proportional to 21,642.05, 29,869.70 and 12,566.00

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Solution

The fourth proportional to 21,642.05, 29,869.70 and 12,566.00 is: 17,343.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,642.05 : 29,869.70 = 12,566.00 : x
  2. Step 2: Convert to fraction form
    21,642.05/29,869.70 = 12,566.00/x
  3. Step 3: Cross multiply
    21,642.05x = 29,869.70 × 12,566.00
  4. Step 4: Simplify right side
    21,642.05x = 375,342,662.04
  5. Step 5: Solve for x
    x = 375,342,662.04/21,642.05
  6. Step 6: Final answer
    x = 17,343.21

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.