Home / 31,358.52-47,045.88-11,642.72

Finding the Fourth Proportional to 31,358.52, 47,045.88 and 11,642.72

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Solution

The fourth proportional to 31,358.52, 47,045.88 and 11,642.72 is: 17,467.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,358.52 : 47,045.88 = 11,642.72 : x
  2. Step 2: Convert to fraction form
    31,358.52/47,045.88 = 11,642.72/x
  3. Step 3: Cross multiply
    31,358.52x = 47,045.88 × 11,642.72
  4. Step 4: Simplify right side
    31,358.52x = 547,742,007.99
  5. Step 5: Solve for x
    x = 547,742,007.99/31,358.52
  6. Step 6: Final answer
    x = 17,467.09

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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.