Home / 21,229.91-31,845.57-9,543.16

Finding the Fourth Proportional to 21,229.91, 31,845.57 and 9,543.16

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Solution

The fourth proportional to 21,229.91, 31,845.57 and 9,543.16 is: 14,315.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,229.91 : 31,845.57 = 9,543.16 : x
  2. Step 2: Convert to fraction form
    21,229.91/31,845.57 = 9,543.16/x
  3. Step 3: Cross multiply
    21,229.91x = 31,845.57 × 9,543.16
  4. Step 4: Simplify right side
    21,229.91x = 303,907,290.19
  5. Step 5: Solve for x
    x = 303,907,290.19/21,229.91
  6. Step 6: Final answer
    x = 14,315.06

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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.