Home / 28,954.74-39,959.46-16,209.12

Finding the Fourth Proportional to 28,954.74, 39,959.46 and 16,209.12

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Solution

The fourth proportional to 28,954.74, 39,959.46 and 16,209.12 is: 22,369.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,954.74 : 39,959.46 = 16,209.12 : x
  2. Step 2: Convert to fraction form
    28,954.74/39,959.46 = 16,209.12/x
  3. Step 3: Cross multiply
    28,954.74x = 39,959.46 × 16,209.12
  4. Step 4: Simplify right side
    28,954.74x = 647,707,682.28
  5. Step 5: Solve for x
    x = 647,707,682.28/28,954.74
  6. Step 6: Final answer
    x = 22,369.66

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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.