Home / 30,138.55-41,562.34-18,036.97

Finding the Fourth Proportional to 30,138.55, 41,562.34 and 18,036.97

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Solution

The fourth proportional to 30,138.55, 41,562.34 and 18,036.97 is: 24,873.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,138.55 : 41,562.34 = 18,036.97 : x
  2. Step 2: Convert to fraction form
    30,138.55/41,562.34 = 18,036.97/x
  3. Step 3: Cross multiply
    30,138.55x = 41,562.34 × 18,036.97
  4. Step 4: Simplify right side
    30,138.55x = 749,658,530.71
  5. Step 5: Solve for x
    x = 749,658,530.71/30,138.55
  6. Step 6: Final answer
    x = 24,873.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.