Home / 30,347.43-45,520.89-9,287.38

Finding the Fourth Proportional to 30,347.43, 45,520.89 and 9,287.38

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Solution

The fourth proportional to 30,347.43, 45,520.89 and 9,287.38 is: 13,930.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,347.43 : 45,520.89 = 9,287.38 : x
  2. Step 2: Convert to fraction form
    30,347.43/45,520.89 = 9,287.38/x
  3. Step 3: Cross multiply
    30,347.43x = 45,520.89 × 9,287.38
  4. Step 4: Simplify right side
    30,347.43x = 422,769,803.37
  5. Step 5: Solve for x
    x = 422,769,803.37/30,347.43
  6. Step 6: Final answer
    x = 13,930.99

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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.