Home / 30,105.11-45,159.83-10,383.38

Finding the Fourth Proportional to 30,105.11, 45,159.83 and 10,383.38

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Solution

The fourth proportional to 30,105.11, 45,159.83 and 10,383.38 is: 15,575.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,105.11 : 45,159.83 = 10,383.38 : x
  2. Step 2: Convert to fraction form
    30,105.11/45,159.83 = 10,383.38/x
  3. Step 3: Cross multiply
    30,105.11x = 45,159.83 × 10,383.38
  4. Step 4: Simplify right side
    30,105.11x = 468,911,814.48
  5. Step 5: Solve for x
    x = 468,911,814.48/30,105.11
  6. Step 6: Final answer
    x = 15,575.82

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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.