Home / 19,119.99-28,679.77-13,474.47

Finding the Fourth Proportional to 19,119.99, 28,679.77 and 13,474.47

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Solution

The fourth proportional to 19,119.99, 28,679.77 and 13,474.47 is: 20,211.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,119.99 : 28,679.77 = 13,474.47 : x
  2. Step 2: Convert to fraction form
    19,119.99/28,679.77 = 13,474.47/x
  3. Step 3: Cross multiply
    19,119.99x = 28,679.77 × 13,474.47
  4. Step 4: Simplify right side
    19,119.99x = 386,444,700.47
  5. Step 5: Solve for x
    x = 386,444,700.47/19,119.99
  6. Step 6: Final answer
    x = 20,211.55

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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.