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Finding the Fourth Proportional to 27,404.79, 37,815.89 and 15,465.82

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Solution

The fourth proportional to 27,404.79, 37,815.89 and 15,465.82 is: 21,341.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,404.79 : 37,815.89 = 15,465.82 : x
  2. Step 2: Convert to fraction form
    27,404.79/37,815.89 = 15,465.82/x
  3. Step 3: Cross multiply
    27,404.79x = 37,815.89 × 15,465.82
  4. Step 4: Simplify right side
    27,404.79x = 584,853,849.95
  5. Step 5: Solve for x
    x = 584,853,849.95/27,404.79
  6. Step 6: Final answer
    x = 21,341.30

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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.