Home / 29,563.72-40,787.64-18,959.20

Finding the Fourth Proportional to 29,563.72, 40,787.64 and 18,959.20

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Solution

The fourth proportional to 29,563.72, 40,787.64 and 18,959.20 is: 26,157.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,563.72 : 40,787.64 = 18,959.20 : x
  2. Step 2: Convert to fraction form
    29,563.72/40,787.64 = 18,959.20/x
  3. Step 3: Cross multiply
    29,563.72x = 40,787.64 × 18,959.20
  4. Step 4: Simplify right side
    29,563.72x = 773,301,024.29
  5. Step 5: Solve for x
    x = 773,301,024.29/29,563.72
  6. Step 6: Final answer
    x = 26,157.09

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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.