Home / 25,888.78-38,776.24-21,395.52

Finding the Fourth Proportional to 25,888.78, 38,776.24 and 21,395.52

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Solution

The fourth proportional to 25,888.78, 38,776.24 and 21,395.52 is: 32,046.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,888.78 : 38,776.24 = 21,395.52 : x
  2. Step 2: Convert to fraction form
    25,888.78/38,776.24 = 21,395.52/x
  3. Step 3: Cross multiply
    25,888.78x = 38,776.24 × 21,395.52
  4. Step 4: Simplify right side
    25,888.78x = 829,637,818.44
  5. Step 5: Solve for x
    x = 829,637,818.44/25,888.78
  6. Step 6: Final answer
    x = 32,046.23

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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.