Home / 30,051.20-41,470.68-18,111.40

Finding the Fourth Proportional to 30,051.20, 41,470.68 and 18,111.40

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Solution

The fourth proportional to 30,051.20, 41,470.68 and 18,111.40 is: 24,993.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,051.20 : 41,470.68 = 18,111.40 : x
  2. Step 2: Convert to fraction form
    30,051.20/41,470.68 = 18,111.40/x
  3. Step 3: Cross multiply
    30,051.20x = 41,470.68 × 18,111.40
  4. Step 4: Simplify right side
    30,051.20x = 751,092,037.99
  5. Step 5: Solve for x
    x = 751,092,037.99/30,051.20
  6. Step 6: Final answer
    x = 24,993.74

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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.