Home / 39,177.07-54,062.79-21,271.66

Finding the Fourth Proportional to 39,177.07, 54,062.79 and 21,271.66

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Solution

The fourth proportional to 39,177.07, 54,062.79 and 21,271.66 is: 29,354.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,177.07 : 54,062.79 = 21,271.66 : x
  2. Step 2: Convert to fraction form
    39,177.07/54,062.79 = 21,271.66/x
  3. Step 3: Cross multiply
    39,177.07x = 54,062.79 × 21,271.66
  4. Step 4: Simplify right side
    39,177.07x = 1,150,005,496.36
  5. Step 5: Solve for x
    x = 1,150,005,496.36/39,177.07
  6. Step 6: Final answer
    x = 29,354.05

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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.