Home / 20,220.05-30,335.99-10,366.20

Finding the Fourth Proportional to 20,220.05, 30,335.99 and 10,366.20

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Solution

The fourth proportional to 20,220.05, 30,335.99 and 10,366.20 is: 15,552.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,220.05 : 30,335.99 = 10,366.20 : x
  2. Step 2: Convert to fraction form
    20,220.05/30,335.99 = 10,366.20/x
  3. Step 3: Cross multiply
    20,220.05x = 30,335.99 × 10,366.20
  4. Step 4: Simplify right side
    20,220.05x = 314,468,887.71
  5. Step 5: Solve for x
    x = 314,468,887.71/20,220.05
  6. Step 6: Final answer
    x = 15,552.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.