Home / 31,468.36-47,202.66-12,748.75

Finding the Fourth Proportional to 31,468.36, 47,202.66 and 12,748.75

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Solution

The fourth proportional to 31,468.36, 47,202.66 and 12,748.75 is: 19,123.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,468.36 : 47,202.66 = 12,748.75 : x
  2. Step 2: Convert to fraction form
    31,468.36/47,202.66 = 12,748.75/x
  3. Step 3: Cross multiply
    31,468.36x = 47,202.66 × 12,748.75
  4. Step 4: Simplify right side
    31,468.36x = 601,774,911.68
  5. Step 5: Solve for x
    x = 601,774,911.68/31,468.36
  6. Step 6: Final answer
    x = 19,123.17

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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.