Home / 26,898.80-40,301.84-20,987.36

Finding the Fourth Proportional to 26,898.80, 40,301.84 and 20,987.36

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Solution

The fourth proportional to 26,898.80, 40,301.84 and 20,987.36 is: 31,444.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,898.80 : 40,301.84 = 20,987.36 : x
  2. Step 2: Convert to fraction form
    26,898.80/40,301.84 = 20,987.36/x
  3. Step 3: Cross multiply
    26,898.80x = 40,301.84 × 20,987.36
  4. Step 4: Simplify right side
    26,898.80x = 845,829,224.74
  5. Step 5: Solve for x
    x = 845,829,224.74/26,898.80
  6. Step 6: Final answer
    x = 31,444.87

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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.