Home / 20,713.53-28,584.63-11,282.16

Finding the Fourth Proportional to 20,713.53, 28,584.63 and 11,282.16

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Solution

The fourth proportional to 20,713.53, 28,584.63 and 11,282.16 is: 15,569.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,713.53 : 28,584.63 = 11,282.16 : x
  2. Step 2: Convert to fraction form
    20,713.53/28,584.63 = 11,282.16/x
  3. Step 3: Cross multiply
    20,713.53x = 28,584.63 × 11,282.16
  4. Step 4: Simplify right side
    20,713.53x = 322,496,369.20
  5. Step 5: Solve for x
    x = 322,496,369.20/20,713.53
  6. Step 6: Final answer
    x = 15,569.36

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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.