Home / 21,787.74-32,697.12-9,943.10

Finding the Fourth Proportional to 21,787.74, 32,697.12 and 9,943.10

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Solution

The fourth proportional to 21,787.74, 32,697.12 and 9,943.10 is: 14,921.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,787.74 : 32,697.12 = 9,943.10 : x
  2. Step 2: Convert to fraction form
    21,787.74/32,697.12 = 9,943.10/x
  3. Step 3: Cross multiply
    21,787.74x = 32,697.12 × 9,943.10
  4. Step 4: Simplify right side
    21,787.74x = 325,110,733.87
  5. Step 5: Solve for x
    x = 325,110,733.87/21,787.74
  6. Step 6: Final answer
    x = 14,921.73

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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.