Home / 39,781.24-54,886.88-25,642.26

Finding the Fourth Proportional to 39,781.24, 54,886.88 and 25,642.26

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Solution

The fourth proportional to 39,781.24, 54,886.88 and 25,642.26 is: 35,379.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,781.24 : 54,886.88 = 25,642.26 : x
  2. Step 2: Convert to fraction form
    39,781.24/54,886.88 = 25,642.26/x
  3. Step 3: Cross multiply
    39,781.24x = 54,886.88 × 25,642.26
  4. Step 4: Simplify right side
    39,781.24x = 1,407,423,647.55
  5. Step 5: Solve for x
    x = 1,407,423,647.55/39,781.24
  6. Step 6: Final answer
    x = 35,379.08

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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.