Home / 22,187.42-33,088.68-18,921.50

Finding the Fourth Proportional to 22,187.42, 33,088.68 and 18,921.50

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Solution

The fourth proportional to 22,187.42, 33,088.68 and 18,921.50 is: 28,218.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,187.42 : 33,088.68 = 18,921.50 : x
  2. Step 2: Convert to fraction form
    22,187.42/33,088.68 = 18,921.50/x
  3. Step 3: Cross multiply
    22,187.42x = 33,088.68 × 18,921.50
  4. Step 4: Simplify right side
    22,187.42x = 626,087,458.62
  5. Step 5: Solve for x
    x = 626,087,458.62/22,187.42
  6. Step 6: Final answer
    x = 28,218.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.