Home / 20,151.32-27,800.19-12,584.52

Finding the Fourth Proportional to 20,151.32, 27,800.19 and 12,584.52

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Solution

The fourth proportional to 20,151.32, 27,800.19 and 12,584.52 is: 17,361.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,151.32 : 27,800.19 = 12,584.52 : x
  2. Step 2: Convert to fraction form
    20,151.32/27,800.19 = 12,584.52/x
  3. Step 3: Cross multiply
    20,151.32x = 27,800.19 × 12,584.52
  4. Step 4: Simplify right side
    20,151.32x = 349,852,047.06
  5. Step 5: Solve for x
    x = 349,852,047.06/20,151.32
  6. Step 6: Final answer
    x = 17,361.25

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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.