Home / 39,165.66-54,047.70-21,260.16

Finding the Fourth Proportional to 39,165.66, 54,047.70 and 21,260.16

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Solution

The fourth proportional to 39,165.66, 54,047.70 and 21,260.16 is: 29,338.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,165.66 : 54,047.70 = 21,260.16 : x
  2. Step 2: Convert to fraction form
    39,165.66/54,047.70 = 21,260.16/x
  3. Step 3: Cross multiply
    39,165.66x = 54,047.70 × 21,260.16
  4. Step 4: Simplify right side
    39,165.66x = 1,149,062,749.63
  5. Step 5: Solve for x
    x = 1,149,062,749.63/39,165.66
  6. Step 6: Final answer
    x = 29,338.53

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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.