Home / 39,707.11-54,759.25-26,979.35

Finding the Fourth Proportional to 39,707.11, 54,759.25 and 26,979.35

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Solution

The fourth proportional to 39,707.11, 54,759.25 and 26,979.35 is: 37,206.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,707.11 : 54,759.25 = 26,979.35 : x
  2. Step 2: Convert to fraction form
    39,707.11/54,759.25 = 26,979.35/x
  3. Step 3: Cross multiply
    39,707.11x = 54,759.25 × 26,979.35
  4. Step 4: Simplify right side
    39,707.11x = 1,477,368,971.49
  5. Step 5: Solve for x
    x = 1,477,368,971.49/39,707.11
  6. Step 6: Final answer
    x = 37,206.66

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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.