Home / 39,851.74-55,013.65-28,374.09

Finding the Fourth Proportional to 39,851.74, 55,013.65 and 28,374.09

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Solution

The fourth proportional to 39,851.74, 55,013.65 and 28,374.09 is: 39,169.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,851.74 : 55,013.65 = 28,374.09 : x
  2. Step 2: Convert to fraction form
    39,851.74/55,013.65 = 28,374.09/x
  3. Step 3: Cross multiply
    39,851.74x = 55,013.65 × 28,374.09
  4. Step 4: Simplify right side
    39,851.74x = 1,560,962,256.33
  5. Step 5: Solve for x
    x = 1,560,962,256.33/39,851.74
  6. Step 6: Final answer
    x = 39,169.24

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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.