Home / 30,065.80-45,098.38-9,289.48

Finding the Fourth Proportional to 30,065.80, 45,098.38 and 9,289.48

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Solution

The fourth proportional to 30,065.80, 45,098.38 and 9,289.48 is: 13,934.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,065.80 : 45,098.38 = 9,289.48 : x
  2. Step 2: Convert to fraction form
    30,065.80/45,098.38 = 9,289.48/x
  3. Step 3: Cross multiply
    30,065.80x = 45,098.38 × 9,289.48
  4. Step 4: Simplify right side
    30,065.80x = 418,940,499.04
  5. Step 5: Solve for x
    x = 418,940,499.04/30,065.80
  6. Step 6: Final answer
    x = 13,934.12

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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.