Home / 39,318.62-58,969.62-12,666.98

Finding the Fourth Proportional to 39,318.62, 58,969.62 and 12,666.98

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Solution

The fourth proportional to 39,318.62, 58,969.62 and 12,666.98 is: 18,997.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,318.62 : 58,969.62 = 12,666.98 : x
  2. Step 2: Convert to fraction form
    39,318.62/58,969.62 = 12,666.98/x
  3. Step 3: Cross multiply
    39,318.62x = 58,969.62 × 12,666.98
  4. Step 4: Simplify right side
    39,318.62x = 746,967,144.57
  5. Step 5: Solve for x
    x = 746,967,144.57/39,318.62
  6. Step 6: Final answer
    x = 18,997.80

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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.