Home / 21,579.31-32,371.98-9,731.44

Finding the Fourth Proportional to 21,579.31, 32,371.98 and 9,731.44

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Solution

The fourth proportional to 21,579.31, 32,371.98 and 9,731.44 is: 14,598.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,579.31 : 32,371.98 = 9,731.44 : x
  2. Step 2: Convert to fraction form
    21,579.31/32,371.98 = 9,731.44/x
  3. Step 3: Cross multiply
    21,579.31x = 32,371.98 × 9,731.44
  4. Step 4: Simplify right side
    21,579.31x = 315,025,981.05
  5. Step 5: Solve for x
    x = 315,025,981.05/21,579.31
  6. Step 6: Final answer
    x = 14,598.52

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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.