Home / 42,640.22-63,960.47-13,057.92

Finding the Fourth Proportional to 42,640.22, 63,960.47 and 13,057.92

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Solution

The fourth proportional to 42,640.22, 63,960.47 and 13,057.92 is: 19,586.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,640.22 : 63,960.47 = 13,057.92 : x
  2. Step 2: Convert to fraction form
    42,640.22/63,960.47 = 13,057.92/x
  3. Step 3: Cross multiply
    42,640.22x = 63,960.47 × 13,057.92
  4. Step 4: Simplify right side
    42,640.22x = 835,190,733.07
  5. Step 5: Solve for x
    x = 835,190,733.07/42,640.22
  6. Step 6: Final answer
    x = 19,586.93

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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.