Home / 39,221.80-54,106.14-25,617.81

Finding the Fourth Proportional to 39,221.80, 54,106.14 and 25,617.81

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Solution

The fourth proportional to 39,221.80, 54,106.14 and 25,617.81 is: 35,339.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,221.80 : 54,106.14 = 25,617.81 : x
  2. Step 2: Convert to fraction form
    39,221.80/54,106.14 = 25,617.81/x
  3. Step 3: Cross multiply
    39,221.80x = 54,106.14 × 25,617.81
  4. Step 4: Simplify right side
    39,221.80x = 1,386,080,814.35
  5. Step 5: Solve for x
    x = 1,386,080,814.35/39,221.80
  6. Step 6: Final answer
    x = 35,339.55

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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.