Home / 20,398.42-30,590.70-7,068.30

Finding the Fourth Proportional to 20,398.42, 30,590.70 and 7,068.30

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Solution

The fourth proportional to 20,398.42, 30,590.70 and 7,068.30 is: 10,600.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,398.42 : 30,590.70 = 7,068.30 : x
  2. Step 2: Convert to fraction form
    20,398.42/30,590.70 = 7,068.30/x
  3. Step 3: Cross multiply
    20,398.42x = 30,590.70 × 7,068.30
  4. Step 4: Simplify right side
    20,398.42x = 216,224,350.69
  5. Step 5: Solve for x
    x = 216,224,350.69/20,398.42
  6. Step 6: Final answer
    x = 10,600.05

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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.