Home / 39,164.70-54,047.12-21,259.56

Finding the Fourth Proportional to 39,164.70, 54,047.12 and 21,259.56

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Solution

The fourth proportional to 39,164.70, 54,047.12 and 21,259.56 is: 29,338.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,164.70 : 54,047.12 = 21,259.56 : x
  2. Step 2: Convert to fraction form
    39,164.70/54,047.12 = 21,259.56/x
  3. Step 3: Cross multiply
    39,164.70x = 54,047.12 × 21,259.56
  4. Step 4: Simplify right side
    39,164.70x = 1,149,017,884.17
  5. Step 5: Solve for x
    x = 1,149,017,884.17/39,164.70
  6. Step 6: Final answer
    x = 29,338.10

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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.