Home / 19,272.94-28,854.75-12,617.20

Finding the Fourth Proportional to 19,272.94, 28,854.75 and 12,617.20

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Solution

The fourth proportional to 19,272.94, 28,854.75 and 12,617.20 is: 18,890.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,272.94 : 28,854.75 = 12,617.20 : x
  2. Step 2: Convert to fraction form
    19,272.94/28,854.75 = 12,617.20/x
  3. Step 3: Cross multiply
    19,272.94x = 28,854.75 × 12,617.20
  4. Step 4: Simplify right side
    19,272.94x = 364,066,151.70
  5. Step 5: Solve for x
    x = 364,066,151.70/19,272.94
  6. Step 6: Final answer
    x = 18,890.02

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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.