Home / 21,388.97-32,088.91-8,904.84

Finding the Fourth Proportional to 21,388.97, 32,088.91 and 8,904.84

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Solution

The fourth proportional to 21,388.97, 32,088.91 and 8,904.84 is: 13,359.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,388.97 : 32,088.91 = 8,904.84 : x
  2. Step 2: Convert to fraction form
    21,388.97/32,088.91 = 8,904.84/x
  3. Step 3: Cross multiply
    21,388.97x = 32,088.91 × 8,904.84
  4. Step 4: Simplify right side
    21,388.97x = 285,746,609.32
  5. Step 5: Solve for x
    x = 285,746,609.32/21,388.97
  6. Step 6: Final answer
    x = 13,359.53

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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.