Home / 19,167.47-28,690.45-13,884.65

Finding the Fourth Proportional to 19,167.47, 28,690.45 and 13,884.65

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Solution

The fourth proportional to 19,167.47, 28,690.45 and 13,884.65 is: 20,782.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,167.47 : 28,690.45 = 13,884.65 : x
  2. Step 2: Convert to fraction form
    19,167.47/28,690.45 = 13,884.65/x
  3. Step 3: Cross multiply
    19,167.47x = 28,690.45 × 13,884.65
  4. Step 4: Simplify right side
    19,167.47x = 398,356,856.59
  5. Step 5: Solve for x
    x = 398,356,856.59/19,167.47
  6. Step 6: Final answer
    x = 20,782.96

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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.