Home / 38,857.57-58,272.08-13,890.85

Finding the Fourth Proportional to 38,857.57, 58,272.08 and 13,890.85

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Solution

The fourth proportional to 38,857.57, 58,272.08 and 13,890.85 is: 20,831.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,857.57 : 58,272.08 = 13,890.85 : x
  2. Step 2: Convert to fraction form
    38,857.57/58,272.08 = 13,890.85/x
  3. Step 3: Cross multiply
    38,857.57x = 58,272.08 × 13,890.85
  4. Step 4: Simplify right side
    38,857.57x = 809,448,507.33
  5. Step 5: Solve for x
    x = 809,448,507.33/38,857.57
  6. Step 6: Final answer
    x = 20,831.17

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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.