Home / 21,164.69-29,178.68-13,598.13

Finding the Fourth Proportional to 21,164.69, 29,178.68 and 13,598.13

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Solution

The fourth proportional to 21,164.69, 29,178.68 and 13,598.13 is: 18,747.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,164.69 : 29,178.68 = 13,598.13 : x
  2. Step 2: Convert to fraction form
    21,164.69/29,178.68 = 13,598.13/x
  3. Step 3: Cross multiply
    21,164.69x = 29,178.68 × 13,598.13
  4. Step 4: Simplify right side
    21,164.69x = 396,775,437.66
  5. Step 5: Solve for x
    x = 396,775,437.66/21,164.69
  6. Step 6: Final answer
    x = 18,747.04

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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.