Home / 30,330.66-45,515.38-11,612.36

Finding the Fourth Proportional to 30,330.66, 45,515.38 and 11,612.36

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Solution

The fourth proportional to 30,330.66, 45,515.38 and 11,612.36 is: 17,425.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,330.66 : 45,515.38 = 11,612.36 : x
  2. Step 2: Convert to fraction form
    30,330.66/45,515.38 = 11,612.36/x
  3. Step 3: Cross multiply
    30,330.66x = 45,515.38 × 11,612.36
  4. Step 4: Simplify right side
    30,330.66x = 528,540,978.10
  5. Step 5: Solve for x
    x = 528,540,978.10/30,330.66
  6. Step 6: Final answer
    x = 17,425.96

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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.