Home / 30,393.20-45,571.78-10,395.61

Finding the Fourth Proportional to 30,393.20, 45,571.78 and 10,395.61

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Solution

The fourth proportional to 30,393.20, 45,571.78 and 10,395.61 is: 15,587.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,393.20 : 45,571.78 = 10,395.61 : x
  2. Step 2: Convert to fraction form
    30,393.20/45,571.78 = 10,395.61/x
  3. Step 3: Cross multiply
    30,393.20x = 45,571.78 × 10,395.61
  4. Step 4: Simplify right side
    30,393.20x = 473,746,399.91
  5. Step 5: Solve for x
    x = 473,746,399.91/30,393.20
  6. Step 6: Final answer
    x = 15,587.25

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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.