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Finding the Fourth Proportional to 22,105.96, 30,465.62 and 20,703.08

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Solution

The fourth proportional to 22,105.96, 30,465.62 and 20,703.08 is: 28,532.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,105.96 : 30,465.62 = 20,703.08 : x
  2. Step 2: Convert to fraction form
    22,105.96/30,465.62 = 20,703.08/x
  3. Step 3: Cross multiply
    22,105.96x = 30,465.62 × 20,703.08
  4. Step 4: Simplify right side
    22,105.96x = 630,732,168.11
  5. Step 5: Solve for x
    x = 630,732,168.11/22,105.96
  6. Step 6: Final answer
    x = 28,532.22

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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.