Home / 20,716.06-28,590.16-12,762.94

Finding the Fourth Proportional to 20,716.06, 28,590.16 and 12,762.94

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Solution

The fourth proportional to 20,716.06, 28,590.16 and 12,762.94 is: 17,614.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,716.06 : 28,590.16 = 12,762.94 : x
  2. Step 2: Convert to fraction form
    20,716.06/28,590.16 = 12,762.94/x
  3. Step 3: Cross multiply
    20,716.06x = 28,590.16 × 12,762.94
  4. Step 4: Simplify right side
    20,716.06x = 364,894,496.67
  5. Step 5: Solve for x
    x = 364,894,496.67/20,716.06
  6. Step 6: Final answer
    x = 17,614.09

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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.