Home / 42,887.24-64,328.80-11,722.56

Finding the Fourth Proportional to 42,887.24, 64,328.80 and 11,722.56

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Solution

The fourth proportional to 42,887.24, 64,328.80 and 11,722.56 is: 17,583.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,887.24 : 64,328.80 = 11,722.56 : x
  2. Step 2: Convert to fraction form
    42,887.24/64,328.80 = 11,722.56/x
  3. Step 3: Cross multiply
    42,887.24x = 64,328.80 × 11,722.56
  4. Step 4: Simplify right side
    42,887.24x = 754,098,217.73
  5. Step 5: Solve for x
    x = 754,098,217.73/42,887.24
  6. Step 6: Final answer
    x = 17,583.28

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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.