Home / 38,918.97-58,378.45-12,623.71

Finding the Fourth Proportional to 38,918.97, 58,378.45 and 12,623.71

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Solution

The fourth proportional to 38,918.97, 58,378.45 and 12,623.71 is: 18,935.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,918.97 : 58,378.45 = 12,623.71 : x
  2. Step 2: Convert to fraction form
    38,918.97/58,378.45 = 12,623.71/x
  3. Step 3: Cross multiply
    38,918.97x = 58,378.45 × 12,623.71
  4. Step 4: Simplify right side
    38,918.97x = 736,952,623.05
  5. Step 5: Solve for x
    x = 736,952,623.05/38,918.97
  6. Step 6: Final answer
    x = 18,935.56

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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.