Home / 21,787.79-32,681.66-17,883.99

Finding the Fourth Proportional to 21,787.79, 32,681.66 and 17,883.99

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Solution

The fourth proportional to 21,787.79, 32,681.66 and 17,883.99 is: 26,825.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,787.79 : 32,681.66 = 17,883.99 : x
  2. Step 2: Convert to fraction form
    21,787.79/32,681.66 = 17,883.99/x
  3. Step 3: Cross multiply
    21,787.79x = 32,681.66 × 17,883.99
  4. Step 4: Simplify right side
    21,787.79x = 584,478,391.20
  5. Step 5: Solve for x
    x = 584,478,391.20/21,787.79
  6. Step 6: Final answer
    x = 26,825.97

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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.