Home / 19,638.28-29,462.40-5,787.28

Finding the Fourth Proportional to 19,638.28, 29,462.40 and 5,787.28

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Solution

The fourth proportional to 19,638.28, 29,462.40 and 5,787.28 is: 8,682.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,638.28 : 29,462.40 = 5,787.28 : x
  2. Step 2: Convert to fraction form
    19,638.28/29,462.40 = 5,787.28/x
  3. Step 3: Cross multiply
    19,638.28x = 29,462.40 × 5,787.28
  4. Step 4: Simplify right side
    19,638.28x = 170,507,158.27
  5. Step 5: Solve for x
    x = 170,507,158.27/19,638.28
  6. Step 6: Final answer
    x = 8,682.39

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1.5x scale

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.