Home / 42,775.44-64,177.11-20,590.62

Finding the Fourth Proportional to 42,775.44, 64,177.11 and 20,590.62

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Solution

The fourth proportional to 42,775.44, 64,177.11 and 20,590.62 is: 30,892.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,775.44 : 64,177.11 = 20,590.62 : x
  2. Step 2: Convert to fraction form
    42,775.44/64,177.11 = 20,590.62/x
  3. Step 3: Cross multiply
    42,775.44x = 64,177.11 × 20,590.62
  4. Step 4: Simplify right side
    42,775.44x = 1,321,446,484.71
  5. Step 5: Solve for x
    x = 1,321,446,484.71/42,775.44
  6. Step 6: Final answer
    x = 30,892.65

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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.