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Finding the Fourth Proportional to 38,980.08, 53,793.80 and 22,212.08

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Solution

The fourth proportional to 38,980.08, 53,793.80 and 22,212.08 is: 30,653.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,980.08 : 53,793.80 = 22,212.08 : x
  2. Step 2: Convert to fraction form
    38,980.08/53,793.80 = 22,212.08/x
  3. Step 3: Cross multiply
    38,980.08x = 53,793.80 × 22,212.08
  4. Step 4: Simplify right side
    38,980.08x = 1,194,872,189.10
  5. Step 5: Solve for x
    x = 1,194,872,189.10/38,980.08
  6. Step 6: Final answer
    x = 30,653.41

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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.