Home / 30,086.16-45,128.66-10,364.28

Finding the Fourth Proportional to 30,086.16, 45,128.66 and 10,364.28

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Solution

The fourth proportional to 30,086.16, 45,128.66 and 10,364.28 is: 15,546.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,086.16 : 45,128.66 = 10,364.28 : x
  2. Step 2: Convert to fraction form
    30,086.16/45,128.66 = 10,364.28/x
  3. Step 3: Cross multiply
    30,086.16x = 45,128.66 × 10,364.28
  4. Step 4: Simplify right side
    30,086.16x = 467,726,016.44
  5. Step 5: Solve for x
    x = 467,726,016.44/30,086.16
  6. Step 6: Final answer
    x = 15,546.22

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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.