Home / 19,550.39-26,972.46-12,839.65

Finding the Fourth Proportional to 19,550.39, 26,972.46 and 12,839.65

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Solution

The fourth proportional to 19,550.39, 26,972.46 and 12,839.65 is: 17,714.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,550.39 : 26,972.46 = 12,839.65 : x
  2. Step 2: Convert to fraction form
    19,550.39/26,972.46 = 12,839.65/x
  3. Step 3: Cross multiply
    19,550.39x = 26,972.46 × 12,839.65
  4. Step 4: Simplify right side
    19,550.39x = 346,316,878.61
  5. Step 5: Solve for x
    x = 346,316,878.61/19,550.39
  6. Step 6: Final answer
    x = 17,714.07

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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.