Home / 21,141.65-29,177.45-11,710.22

Finding the Fourth Proportional to 21,141.65, 29,177.45 and 11,710.22

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Solution

The fourth proportional to 21,141.65, 29,177.45 and 11,710.22 is: 16,161.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,141.65 : 29,177.45 = 11,710.22 : x
  2. Step 2: Convert to fraction form
    21,141.65/29,177.45 = 11,710.22/x
  3. Step 3: Cross multiply
    21,141.65x = 29,177.45 × 11,710.22
  4. Step 4: Simplify right side
    21,141.65x = 341,674,154.10
  5. Step 5: Solve for x
    x = 341,674,154.10/21,141.65
  6. Step 6: Final answer
    x = 16,161.19

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1.5x scale

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.