Home / 30,100.38-45,152.19-12,552.54

Finding the Fourth Proportional to 30,100.38, 45,152.19 and 12,552.54

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Solution

The fourth proportional to 30,100.38, 45,152.19 and 12,552.54 is: 18,829.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,100.38 : 45,152.19 = 12,552.54 : x
  2. Step 2: Convert to fraction form
    30,100.38/45,152.19 = 12,552.54/x
  3. Step 3: Cross multiply
    30,100.38x = 45,152.19 × 12,552.54
  4. Step 4: Simplify right side
    30,100.38x = 566,774,671.06
  5. Step 5: Solve for x
    x = 566,774,671.06/30,100.38
  6. Step 6: Final answer
    x = 18,829.49

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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.