Home / 21,144.15-31,717.71-6,353.15

Finding the Fourth Proportional to 21,144.15, 31,717.71 and 6,353.15

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Solution

The fourth proportional to 21,144.15, 31,717.71 and 6,353.15 is: 9,530.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,144.15 : 31,717.71 = 6,353.15 : x
  2. Step 2: Convert to fraction form
    21,144.15/31,717.71 = 6,353.15/x
  3. Step 3: Cross multiply
    21,144.15x = 31,717.71 × 6,353.15
  4. Step 4: Simplify right side
    21,144.15x = 201,507,210.70
  5. Step 5: Solve for x
    x = 201,507,210.70/21,144.15
  6. Step 6: Final answer
    x = 9,530.16

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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.