Home / 39,318.86-54,311.96-29,130.59

Finding the Fourth Proportional to 39,318.86, 54,311.96 and 29,130.59

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Solution

The fourth proportional to 39,318.86, 54,311.96 and 29,130.59 is: 40,238.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,318.86 : 54,311.96 = 29,130.59 : x
  2. Step 2: Convert to fraction form
    39,318.86/54,311.96 = 29,130.59/x
  3. Step 3: Cross multiply
    39,318.86x = 54,311.96 × 29,130.59
  4. Step 4: Simplify right side
    39,318.86x = 1,582,139,647.46
  5. Step 5: Solve for x
    x = 1,582,139,647.46/39,318.86
  6. Step 6: Final answer
    x = 40,238.69

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.