Home / 20,442.35-30,683.10-10,588.70

Finding the Fourth Proportional to 20,442.35, 30,683.10 and 10,588.70

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Solution

The fourth proportional to 20,442.35, 30,683.10 and 10,588.70 is: 15,893.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,442.35 : 30,683.10 = 10,588.70 : x
  2. Step 2: Convert to fraction form
    20,442.35/30,683.10 = 10,588.70/x
  3. Step 3: Cross multiply
    20,442.35x = 30,683.10 × 10,588.70
  4. Step 4: Simplify right side
    20,442.35x = 324,894,140.97
  5. Step 5: Solve for x
    x = 324,894,140.97/20,442.35
  6. Step 6: Final answer
    x = 15,893.19

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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.