Home / 21,492.15-32,218.79-7,637.91

Finding the Fourth Proportional to 21,492.15, 32,218.79 and 7,637.91

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Solution

The fourth proportional to 21,492.15, 32,218.79 and 7,637.91 is: 11,449.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,492.15 : 32,218.79 = 7,637.91 : x
  2. Step 2: Convert to fraction form
    21,492.15/32,218.79 = 7,637.91/x
  3. Step 3: Cross multiply
    21,492.15x = 32,218.79 × 7,637.91
  4. Step 4: Simplify right side
    21,492.15x = 246,084,180.14
  5. Step 5: Solve for x
    x = 246,084,180.14/21,492.15
  6. Step 6: Final answer
    x = 11,449.96

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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.