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Finding the Fourth Proportional to 35,585.80, 49,108.90 and 19,670.20

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Solution

The fourth proportional to 35,585.80, 49,108.90 and 19,670.20 is: 27,145.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,585.80 : 49,108.90 = 19,670.20 : x
  2. Step 2: Convert to fraction form
    35,585.80/49,108.90 = 19,670.20/x
  3. Step 3: Cross multiply
    35,585.80x = 49,108.90 × 19,670.20
  4. Step 4: Simplify right side
    35,585.80x = 965,981,884.78
  5. Step 5: Solve for x
    x = 965,981,884.78/35,585.80
  6. Step 6: Final answer
    x = 27,145.15

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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.