Home / 30,479.17-45,721.83-11,499.04

Finding the Fourth Proportional to 30,479.17, 45,721.83 and 11,499.04

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Solution

The fourth proportional to 30,479.17, 45,721.83 and 11,499.04 is: 17,249.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,479.17 : 45,721.83 = 11,499.04 : x
  2. Step 2: Convert to fraction form
    30,479.17/45,721.83 = 11,499.04/x
  3. Step 3: Cross multiply
    30,479.17x = 45,721.83 × 11,499.04
  4. Step 4: Simplify right side
    30,479.17x = 525,757,152.04
  5. Step 5: Solve for x
    x = 525,757,152.04/30,479.17
  6. Step 6: Final answer
    x = 17,249.72

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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.