Home / 31,396.86-43,312.86-20,060.46

Finding the Fourth Proportional to 31,396.86, 43,312.86 and 20,060.46

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Solution

The fourth proportional to 31,396.86, 43,312.86 and 20,060.46 is: 27,673.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,396.86 : 43,312.86 = 20,060.46 : x
  2. Step 2: Convert to fraction form
    31,396.86/43,312.86 = 20,060.46/x
  3. Step 3: Cross multiply
    31,396.86x = 43,312.86 × 20,060.46
  4. Step 4: Simplify right side
    31,396.86x = 868,875,895.52
  5. Step 5: Solve for x
    x = 868,875,895.52/31,396.86
  6. Step 6: Final answer
    x = 27,673.97

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.