Home / 30,853.32-42,577.29-18,106.62

Finding the Fourth Proportional to 30,853.32, 42,577.29 and 18,106.62

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Solution

The fourth proportional to 30,853.32, 42,577.29 and 18,106.62 is: 24,986.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,853.32 : 42,577.29 = 18,106.62 : x
  2. Step 2: Convert to fraction form
    30,853.32/42,577.29 = 18,106.62/x
  3. Step 3: Cross multiply
    30,853.32x = 42,577.29 × 18,106.62
  4. Step 4: Simplify right side
    30,853.32x = 770,930,810.66
  5. Step 5: Solve for x
    x = 770,930,810.66/30,853.32
  6. Step 6: Final answer
    x = 24,986.96

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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.