Home / 20,295.19-28,025.18-12,754.59

Finding the Fourth Proportional to 20,295.19, 28,025.18 and 12,754.59

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Solution

The fourth proportional to 20,295.19, 28,025.18 and 12,754.59 is: 17,612.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,295.19 : 28,025.18 = 12,754.59 : x
  2. Step 2: Convert to fraction form
    20,295.19/28,025.18 = 12,754.59/x
  3. Step 3: Cross multiply
    20,295.19x = 28,025.18 × 12,754.59
  4. Step 4: Simplify right side
    20,295.19x = 357,449,680.58
  5. Step 5: Solve for x
    x = 357,449,680.58/20,295.19
  6. Step 6: Final answer
    x = 17,612.53

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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.