Home / 42,776.88-64,122.23-17,830.73

Finding the Fourth Proportional to 42,776.88, 64,122.23 and 17,830.73

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Solution

The fourth proportional to 42,776.88, 64,122.23 and 17,830.73 is: 26,728.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,776.88 : 64,122.23 = 17,830.73 : x
  2. Step 2: Convert to fraction form
    42,776.88/64,122.23 = 17,830.73/x
  3. Step 3: Cross multiply
    42,776.88x = 64,122.23 × 17,830.73
  4. Step 4: Simplify right side
    42,776.88x = 1,143,346,375.01
  5. Step 5: Solve for x
    x = 1,143,346,375.01/42,776.88
  6. Step 6: Final answer
    x = 26,728.14

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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.