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Finding the Fourth Proportional to 35,521.80, 53,282.70 and 19,939.08

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Solution

The fourth proportional to 35,521.80, 53,282.70 and 19,939.08 is: 29,908.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,521.80 : 53,282.70 = 19,939.08 : x
  2. Step 2: Convert to fraction form
    35,521.80/53,282.70 = 19,939.08/x
  3. Step 3: Cross multiply
    35,521.80x = 53,282.70 × 19,939.08
  4. Step 4: Simplify right side
    35,521.80x = 1,062,408,017.92
  5. Step 5: Solve for x
    x = 1,062,408,017.92/35,521.80
  6. Step 6: Final answer
    x = 29,908.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.