Home / 30,279.15-45,425.55-9,221.07

Finding the Fourth Proportional to 30,279.15, 45,425.55 and 9,221.07

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Solution

The fourth proportional to 30,279.15, 45,425.55 and 9,221.07 is: 13,833.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,279.15 : 45,425.55 = 9,221.07 : x
  2. Step 2: Convert to fraction form
    30,279.15/45,425.55 = 9,221.07/x
  3. Step 3: Cross multiply
    30,279.15x = 45,425.55 × 9,221.07
  4. Step 4: Simplify right side
    30,279.15x = 418,872,176.34
  5. Step 5: Solve for x
    x = 418,872,176.34/30,279.15
  6. Step 6: Final answer
    x = 13,833.68

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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.