Home / 20,210.60-30,308.70-7,063.40

Finding the Fourth Proportional to 20,210.60, 30,308.70 and 7,063.40

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Solution

The fourth proportional to 20,210.60, 30,308.70 and 7,063.40 is: 10,592.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,210.60 : 30,308.70 = 7,063.40 : x
  2. Step 2: Convert to fraction form
    20,210.60/30,308.70 = 7,063.40/x
  3. Step 3: Cross multiply
    20,210.60x = 30,308.70 × 7,063.40
  4. Step 4: Simplify right side
    20,210.60x = 214,082,471.58
  5. Step 5: Solve for x
    x = 214,082,471.58/20,210.60
  6. Step 6: Final answer
    x = 10,592.58

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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.