Home / 27,818.60-38,368.73-19,320.73

Finding the Fourth Proportional to 27,818.60, 38,368.73 and 19,320.73

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Solution

The fourth proportional to 27,818.60, 38,368.73 and 19,320.73 is: 26,648.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,818.60 : 38,368.73 = 19,320.73 : x
  2. Step 2: Convert to fraction form
    27,818.60/38,368.73 = 19,320.73/x
  3. Step 3: Cross multiply
    27,818.60x = 38,368.73 × 19,320.73
  4. Step 4: Simplify right side
    27,818.60x = 741,311,825.15
  5. Step 5: Solve for x
    x = 741,311,825.15/27,818.60
  6. Step 6: Final answer
    x = 26,648.07

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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.