Home / 30,443.40-42,016.50-17,873.80

Finding the Fourth Proportional to 30,443.40, 42,016.50 and 17,873.80

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Solution

The fourth proportional to 30,443.40, 42,016.50 and 17,873.80 is: 24,668.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,443.40 : 42,016.50 = 17,873.80 : x
  2. Step 2: Convert to fraction form
    30,443.40/42,016.50 = 17,873.80/x
  3. Step 3: Cross multiply
    30,443.40x = 42,016.50 × 17,873.80
  4. Step 4: Simplify right side
    30,443.40x = 750,994,517.70
  5. Step 5: Solve for x
    x = 750,994,517.70/30,443.40
  6. Step 6: Final answer
    x = 24,668.55

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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.