Home / 21,981.22-32,948.58-7,186.16

Finding the Fourth Proportional to 21,981.22, 32,948.58 and 7,186.16

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Solution

The fourth proportional to 21,981.22, 32,948.58 and 7,186.16 is: 10,771.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,981.22 : 32,948.58 = 7,186.16 : x
  2. Step 2: Convert to fraction form
    21,981.22/32,948.58 = 7,186.16/x
  3. Step 3: Cross multiply
    21,981.22x = 32,948.58 × 7,186.16
  4. Step 4: Simplify right side
    21,981.22x = 236,773,850.02
  5. Step 5: Solve for x
    x = 236,773,850.02/21,981.22
  6. Step 6: Final answer
    x = 10,771.64

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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.