Home / 39,151.96-58,729.86-12,864.28

Finding the Fourth Proportional to 39,151.96, 58,729.86 and 12,864.28

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Solution

The fourth proportional to 39,151.96, 58,729.86 and 12,864.28 is: 19,297.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,151.96 : 58,729.86 = 12,864.28 : x
  2. Step 2: Convert to fraction form
    39,151.96/58,729.86 = 12,864.28/x
  3. Step 3: Cross multiply
    39,151.96x = 58,729.86 × 12,864.28
  4. Step 4: Simplify right side
    39,151.96x = 755,517,363.40
  5. Step 5: Solve for x
    x = 755,517,363.40/39,151.96
  6. Step 6: Final answer
    x = 19,297.05

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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.