Home / 22,121.10-30,533.78-15,051.62

Finding the Fourth Proportional to 22,121.10, 30,533.78 and 15,051.62

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Solution

The fourth proportional to 22,121.10, 30,533.78 and 15,051.62 is: 20,775.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,121.10 : 30,533.78 = 15,051.62 : x
  2. Step 2: Convert to fraction form
    22,121.10/30,533.78 = 15,051.62/x
  3. Step 3: Cross multiply
    22,121.10x = 30,533.78 × 15,051.62
  4. Step 4: Simplify right side
    22,121.10x = 459,582,701.05
  5. Step 5: Solve for x
    x = 459,582,701.05/22,121.10
  6. Step 6: Final answer
    x = 20,775.77

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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.