Home / 42,888.24-64,330.30-11,723.56

Finding the Fourth Proportional to 42,888.24, 64,330.30 and 11,723.56

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Solution

The fourth proportional to 42,888.24, 64,330.30 and 11,723.56 is: 17,584.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,888.24 : 64,330.30 = 11,723.56 : x
  2. Step 2: Convert to fraction form
    42,888.24/64,330.30 = 11,723.56/x
  3. Step 3: Cross multiply
    42,888.24x = 64,330.30 × 11,723.56
  4. Step 4: Simplify right side
    42,888.24x = 754,180,131.87
  5. Step 5: Solve for x
    x = 754,180,131.87/42,888.24
  6. Step 6: Final answer
    x = 17,584.78

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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.