Home / 21,317.46-31,971.33-5,736.30

Finding the Fourth Proportional to 21,317.46, 31,971.33 and 5,736.30

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Solution

The fourth proportional to 21,317.46, 31,971.33 and 5,736.30 is: 8,603.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,317.46 : 31,971.33 = 5,736.30 : x
  2. Step 2: Convert to fraction form
    21,317.46/31,971.33 = 5,736.30/x
  3. Step 3: Cross multiply
    21,317.46x = 31,971.33 × 5,736.30
  4. Step 4: Simplify right side
    21,317.46x = 183,397,140.28
  5. Step 5: Solve for x
    x = 183,397,140.28/21,317.46
  6. Step 6: Final answer
    x = 8,603.14

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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.