Home / 30,374.39-41,921.27-18,435.41

Finding the Fourth Proportional to 30,374.39, 41,921.27 and 18,435.41

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Solution

The fourth proportional to 30,374.39, 41,921.27 and 18,435.41 is: 25,443.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,374.39 : 41,921.27 = 18,435.41 : x
  2. Step 2: Convert to fraction form
    30,374.39/41,921.27 = 18,435.41/x
  3. Step 3: Cross multiply
    30,374.39x = 41,921.27 × 18,435.41
  4. Step 4: Simplify right side
    30,374.39x = 772,835,498.39
  5. Step 5: Solve for x
    x = 772,835,498.39/30,374.39
  6. Step 6: Final answer
    x = 25,443.66

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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.