Home / 30,121.46-45,187.35-10,395.39

Finding the Fourth Proportional to 30,121.46, 45,187.35 and 10,395.39

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Solution

The fourth proportional to 30,121.46, 45,187.35 and 10,395.39 is: 15,594.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,121.46 : 45,187.35 = 10,395.39 : x
  2. Step 2: Convert to fraction form
    30,121.46/45,187.35 = 10,395.39/x
  3. Step 3: Cross multiply
    30,121.46x = 45,187.35 × 10,395.39
  4. Step 4: Simplify right side
    30,121.46x = 469,740,126.32
  5. Step 5: Solve for x
    x = 469,740,126.32/30,121.46
  6. Step 6: Final answer
    x = 15,594.87

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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.