Home / 20,469.16-28,247.30-11,637.16

Finding the Fourth Proportional to 20,469.16, 28,247.30 and 11,637.16

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Solution

The fourth proportional to 20,469.16, 28,247.30 and 11,637.16 is: 16,059.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,469.16 : 28,247.30 = 11,637.16 : x
  2. Step 2: Convert to fraction form
    20,469.16/28,247.30 = 11,637.16/x
  3. Step 3: Cross multiply
    20,469.16x = 28,247.30 × 11,637.16
  4. Step 4: Simplify right side
    20,469.16x = 328,718,349.67
  5. Step 5: Solve for x
    x = 328,718,349.67/20,469.16
  6. Step 6: Final answer
    x = 16,059.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.