Home / 27,780.66-38,349.96-17,722.92

Finding the Fourth Proportional to 27,780.66, 38,349.96 and 17,722.92

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Solution

The fourth proportional to 27,780.66, 38,349.96 and 17,722.92 is: 24,465.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,780.66 : 38,349.96 = 17,722.92 : x
  2. Step 2: Convert to fraction form
    27,780.66/38,349.96 = 17,722.92/x
  3. Step 3: Cross multiply
    27,780.66x = 38,349.96 × 17,722.92
  4. Step 4: Simplify right side
    27,780.66x = 679,673,273.08
  5. Step 5: Solve for x
    x = 679,673,273.08/27,780.66
  6. Step 6: Final answer
    x = 24,465.70

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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.