Home / 20,552.19-30,810.87-8,705.49

Finding the Fourth Proportional to 20,552.19, 30,810.87 and 8,705.49

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Solution

The fourth proportional to 20,552.19, 30,810.87 and 8,705.49 is: 13,050.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,552.19 : 30,810.87 = 8,705.49 : x
  2. Step 2: Convert to fraction form
    20,552.19/30,810.87 = 8,705.49/x
  3. Step 3: Cross multiply
    20,552.19x = 30,810.87 × 8,705.49
  4. Step 4: Simplify right side
    20,552.19x = 268,223,720.68
  5. Step 5: Solve for x
    x = 268,223,720.68/20,552.19
  6. Step 6: Final answer
    x = 13,050.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.