Home / 27,771.08-38,326.20-15,834.70

Finding the Fourth Proportional to 27,771.08, 38,326.20 and 15,834.70

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Solution

The fourth proportional to 27,771.08, 38,326.20 and 15,834.70 is: 21,853.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,771.08 : 38,326.20 = 15,834.70 : x
  2. Step 2: Convert to fraction form
    27,771.08/38,326.20 = 15,834.70/x
  3. Step 3: Cross multiply
    27,771.08x = 38,326.20 × 15,834.70
  4. Step 4: Simplify right side
    27,771.08x = 606,883,687.51
  5. Step 5: Solve for x
    x = 606,883,687.51/27,771.08
  6. Step 6: Final answer
    x = 21,853.08

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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.