Home / 39,164.16-54,047.49-21,259.11

Finding the Fourth Proportional to 39,164.16, 54,047.49 and 21,259.11

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Solution

The fourth proportional to 39,164.16, 54,047.49 and 21,259.11 is: 29,338.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,164.16 : 54,047.49 = 21,259.11 : x
  2. Step 2: Convert to fraction form
    39,164.16/54,047.49 = 21,259.11/x
  3. Step 3: Cross multiply
    39,164.16x = 54,047.49 × 21,259.11
  4. Step 4: Simplify right side
    39,164.16x = 1,149,001,535.13
  5. Step 5: Solve for x
    x = 1,149,001,535.13/39,164.16
  6. Step 6: Final answer
    x = 29,338.09

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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.