Home / 22,146.48-30,555.96-12,711.60

Finding the Fourth Proportional to 22,146.48, 30,555.96 and 12,711.60

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Solution

The fourth proportional to 22,146.48, 30,555.96 and 12,711.60 is: 17,538.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,146.48 : 30,555.96 = 12,711.60 : x
  2. Step 2: Convert to fraction form
    22,146.48/30,555.96 = 12,711.60/x
  3. Step 3: Cross multiply
    22,146.48x = 30,555.96 × 12,711.60
  4. Step 4: Simplify right side
    22,146.48x = 388,415,141.14
  5. Step 5: Solve for x
    x = 388,415,141.14/22,146.48
  6. Step 6: Final answer
    x = 17,538.46

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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.