Home / 19,119.85-28,677.95-5,080.22

Finding the Fourth Proportional to 19,119.85, 28,677.95 and 5,080.22

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Solution

The fourth proportional to 19,119.85, 28,677.95 and 5,080.22 is: 7,619.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,119.85 : 28,677.95 = 5,080.22 : x
  2. Step 2: Convert to fraction form
    19,119.85/28,677.95 = 5,080.22/x
  3. Step 3: Cross multiply
    19,119.85x = 28,677.95 × 5,080.22
  4. Step 4: Simplify right side
    19,119.85x = 145,690,252.95
  5. Step 5: Solve for x
    x = 145,690,252.95/19,119.85
  6. Step 6: Final answer
    x = 7,619.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.