Home / 39,105.30-58,666.50-14,142.75

Finding the Fourth Proportional to 39,105.30, 58,666.50 and 14,142.75

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Solution

The fourth proportional to 39,105.30, 58,666.50 and 14,142.75 is: 21,217.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,105.30 : 58,666.50 = 14,142.75 : x
  2. Step 2: Convert to fraction form
    39,105.30/58,666.50 = 14,142.75/x
  3. Step 3: Cross multiply
    39,105.30x = 58,666.50 × 14,142.75
  4. Step 4: Simplify right side
    39,105.30x = 829,705,369.84
  5. Step 5: Solve for x
    x = 829,705,369.84/39,105.30
  6. Step 6: Final answer
    x = 21,217.21

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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.