Home / 39,405.72-54,358.74-26,642.10

Finding the Fourth Proportional to 39,405.72, 54,358.74 and 26,642.10

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Solution

The fourth proportional to 39,405.72, 54,358.74 and 26,642.10 is: 36,751.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,405.72 : 54,358.74 = 26,642.10 : x
  2. Step 2: Convert to fraction form
    39,405.72/54,358.74 = 26,642.10/x
  3. Step 3: Cross multiply
    39,405.72x = 54,358.74 × 26,642.10
  4. Step 4: Simplify right side
    39,405.72x = 1,448,230,986.95
  5. Step 5: Solve for x
    x = 1,448,230,986.95/39,405.72
  6. Step 6: Final answer
    x = 36,751.80

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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.