Home / 21,660.03-32,468.44-12,899.07

Finding the Fourth Proportional to 21,660.03, 32,468.44 and 12,899.07

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Solution

The fourth proportional to 21,660.03, 32,468.44 and 12,899.07 is: 19,335.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,660.03 : 32,468.44 = 12,899.07 : x
  2. Step 2: Convert to fraction form
    21,660.03/32,468.44 = 12,899.07/x
  3. Step 3: Cross multiply
    21,660.03x = 32,468.44 × 12,899.07
  4. Step 4: Simplify right side
    21,660.03x = 418,812,680.35
  5. Step 5: Solve for x
    x = 418,812,680.35/21,660.03
  6. Step 6: Final answer
    x = 19,335.74

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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.