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Finding the Fourth Proportional to 39,404.70, 59,107.05 and 19,686.30

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Solution

The fourth proportional to 39,404.70, 59,107.05 and 19,686.30 is: 29,529.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,404.70 : 59,107.05 = 19,686.30 : x
  2. Step 2: Convert to fraction form
    39,404.70/59,107.05 = 19,686.30/x
  3. Step 3: Cross multiply
    39,404.70x = 59,107.05 × 19,686.30
  4. Step 4: Simplify right side
    39,404.70x = 1,163,599,118.42
  5. Step 5: Solve for x
    x = 1,163,599,118.42/39,404.70
  6. Step 6: Final answer
    x = 29,529.45

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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.