Home / 21,954.11-32,931.16-5,314.14

Finding the Fourth Proportional to 21,954.11, 32,931.16 and 5,314.14

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Solution

The fourth proportional to 21,954.11, 32,931.16 and 5,314.14 is: 7,971.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,954.11 : 32,931.16 = 5,314.14 : x
  2. Step 2: Convert to fraction form
    21,954.11/32,931.16 = 5,314.14/x
  3. Step 3: Cross multiply
    21,954.11x = 32,931.16 × 5,314.14
  4. Step 4: Simplify right side
    21,954.11x = 175,000,781.32
  5. Step 5: Solve for x
    x = 175,000,781.32/21,954.11
  6. Step 6: Final answer
    x = 7,971.21

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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.