Home / 27,056.80-40,512.30-21,176.20

Finding the Fourth Proportional to 27,056.80, 40,512.30 and 21,176.20

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Solution

The fourth proportional to 27,056.80, 40,512.30 and 21,176.20 is: 31,707.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,056.80 : 40,512.30 = 21,176.20 : x
  2. Step 2: Convert to fraction form
    27,056.80/40,512.30 = 21,176.20/x
  3. Step 3: Cross multiply
    27,056.80x = 40,512.30 × 21,176.20
  4. Step 4: Simplify right side
    27,056.80x = 857,896,567.26
  5. Step 5: Solve for x
    x = 857,896,567.26/27,056.80
  6. Step 6: Final answer
    x = 31,707.24

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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.