Home / 28,754.85-39,680.19-16,180.41

Finding the Fourth Proportional to 28,754.85, 39,680.19 and 16,180.41

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Solution

The fourth proportional to 28,754.85, 39,680.19 and 16,180.41 is: 22,328.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,754.85 : 39,680.19 = 16,180.41 : x
  2. Step 2: Convert to fraction form
    28,754.85/39,680.19 = 16,180.41/x
  3. Step 3: Cross multiply
    28,754.85x = 39,680.19 × 16,180.41
  4. Step 4: Simplify right side
    28,754.85x = 642,041,743.08
  5. Step 5: Solve for x
    x = 642,041,743.08/28,754.85
  6. Step 6: Final answer
    x = 22,328.12

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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.