Home / 39,134.72-58,709.64-18,358.76

Finding the Fourth Proportional to 39,134.72, 58,709.64 and 18,358.76

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Solution

The fourth proportional to 39,134.72, 58,709.64 and 18,358.76 is: 27,541.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,134.72 : 58,709.64 = 18,358.76 : x
  2. Step 2: Convert to fraction form
    39,134.72/58,709.64 = 18,358.76/x
  3. Step 3: Cross multiply
    39,134.72x = 58,709.64 × 18,358.76
  4. Step 4: Simplify right side
    39,134.72x = 1,077,836,190.45
  5. Step 5: Solve for x
    x = 1,077,836,190.45/39,134.72
  6. Step 6: Final answer
    x = 27,541.69

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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.