Home / 30,081.90-45,110.42-11,358.76

Finding the Fourth Proportional to 30,081.90, 45,110.42 and 11,358.76

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Solution

The fourth proportional to 30,081.90, 45,110.42 and 11,358.76 is: 17,033.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,081.90 : 45,110.42 = 11,358.76 : x
  2. Step 2: Convert to fraction form
    30,081.90/45,110.42 = 11,358.76/x
  3. Step 3: Cross multiply
    30,081.90x = 45,110.42 × 11,358.76
  4. Step 4: Simplify right side
    30,081.90x = 512,398,434.28
  5. Step 5: Solve for x
    x = 512,398,434.28/30,081.90
  6. Step 6: Final answer
    x = 17,033.45

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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.