Home / 21,858.66-32,787.99-10,165.50

Finding the Fourth Proportional to 21,858.66, 32,787.99 and 10,165.50

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Solution

The fourth proportional to 21,858.66, 32,787.99 and 10,165.50 is: 15,248.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,858.66 : 32,787.99 = 10,165.50 : x
  2. Step 2: Convert to fraction form
    21,858.66/32,787.99 = 10,165.50/x
  3. Step 3: Cross multiply
    21,858.66x = 32,787.99 × 10,165.50
  4. Step 4: Simplify right side
    21,858.66x = 333,306,312.35
  5. Step 5: Solve for x
    x = 333,306,312.35/21,858.66
  6. Step 6: Final answer
    x = 15,248.25

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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.