Home / 39,115.03-58,677.12-12,451.68

Finding the Fourth Proportional to 39,115.03, 58,677.12 and 12,451.68

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Solution

The fourth proportional to 39,115.03, 58,677.12 and 12,451.68 is: 18,678.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,115.03 : 58,677.12 = 12,451.68 : x
  2. Step 2: Convert to fraction form
    39,115.03/58,677.12 = 12,451.68/x
  3. Step 3: Cross multiply
    39,115.03x = 58,677.12 × 12,451.68
  4. Step 4: Simplify right side
    39,115.03x = 730,628,541.24
  5. Step 5: Solve for x
    x = 730,628,541.24/39,115.03
  6. Step 6: Final answer
    x = 18,678.97

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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.