Home / 30,145.62-45,182.16-11,155.11

Finding the Fourth Proportional to 30,145.62, 45,182.16 and 11,155.11

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Solution

The fourth proportional to 30,145.62, 45,182.16 and 11,155.11 is: 16,719.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,145.62 : 45,182.16 = 11,155.11 : x
  2. Step 2: Convert to fraction form
    30,145.62/45,182.16 = 11,155.11/x
  3. Step 3: Cross multiply
    30,145.62x = 45,182.16 × 11,155.11
  4. Step 4: Simplify right side
    30,145.62x = 504,011,964.84
  5. Step 5: Solve for x
    x = 504,011,964.84/30,145.62
  6. Step 6: Final answer
    x = 16,719.24

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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.