Home / 39,746.78-54,851.57-21,842.24

Finding the Fourth Proportional to 39,746.78, 54,851.57 and 21,842.24

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Solution

The fourth proportional to 39,746.78, 54,851.57 and 21,842.24 is: 30,142.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,746.78 : 54,851.57 = 21,842.24 : x
  2. Step 2: Convert to fraction form
    39,746.78/54,851.57 = 21,842.24/x
  3. Step 3: Cross multiply
    39,746.78x = 54,851.57 × 21,842.24
  4. Step 4: Simplify right side
    39,746.78x = 1,198,080,772.85
  5. Step 5: Solve for x
    x = 1,198,080,772.85/39,746.78
  6. Step 6: Final answer
    x = 30,142.84

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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.