Home / 26,398.02-36,429.27-15,787.66

Finding the Fourth Proportional to 26,398.02, 36,429.27 and 15,787.66

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Solution

The fourth proportional to 26,398.02, 36,429.27 and 15,787.66 is: 21,786.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,398.02 : 36,429.27 = 15,787.66 : x
  2. Step 2: Convert to fraction form
    26,398.02/36,429.27 = 15,787.66/x
  3. Step 3: Cross multiply
    26,398.02x = 36,429.27 × 15,787.66
  4. Step 4: Simplify right side
    26,398.02x = 575,132,877.20
  5. Step 5: Solve for x
    x = 575,132,877.20/26,398.02
  6. Step 6: Final answer
    x = 21,786.97

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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.