Home / 21,164.83-29,140.97-17,971.40

Finding the Fourth Proportional to 21,164.83, 29,140.97 and 17,971.40

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Solution

The fourth proportional to 21,164.83, 29,140.97 and 17,971.40 is: 24,744.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,164.83 : 29,140.97 = 17,971.40 : x
  2. Step 2: Convert to fraction form
    21,164.83/29,140.97 = 17,971.40/x
  3. Step 3: Cross multiply
    21,164.83x = 29,140.97 × 17,971.40
  4. Step 4: Simplify right side
    21,164.83x = 523,704,011.25
  5. Step 5: Solve for x
    x = 523,704,011.25/21,164.83
  6. Step 6: Final answer
    x = 24,744.07

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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.