Home / 28,931.39-43,396.77-21,954.26

Finding the Fourth Proportional to 28,931.39, 43,396.77 and 21,954.26

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Solution

The fourth proportional to 28,931.39, 43,396.77 and 21,954.26 is: 32,931.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,931.39 : 43,396.77 = 21,954.26 : x
  2. Step 2: Convert to fraction form
    28,931.39/43,396.77 = 21,954.26/x
  3. Step 3: Cross multiply
    28,931.39x = 43,396.77 × 21,954.26
  4. Step 4: Simplify right side
    28,931.39x = 952,743,837.08
  5. Step 5: Solve for x
    x = 952,743,837.08/28,931.39
  6. Step 6: Final answer
    x = 32,931.14

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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.