Home / 39,285.21-58,937.04-12,989.94

Finding the Fourth Proportional to 39,285.21, 58,937.04 and 12,989.94

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Solution

The fourth proportional to 39,285.21, 58,937.04 and 12,989.94 is: 19,487.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,285.21 : 58,937.04 = 12,989.94 : x
  2. Step 2: Convert to fraction form
    39,285.21/58,937.04 = 12,989.94/x
  3. Step 3: Cross multiply
    39,285.21x = 58,937.04 × 12,989.94
  4. Step 4: Simplify right side
    39,285.21x = 765,588,613.38
  5. Step 5: Solve for x
    x = 765,588,613.38/39,285.21
  6. Step 6: Final answer
    x = 19,487.96

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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.