Home / 31,398.24-47,074.32-14,749.68

Finding the Fourth Proportional to 31,398.24, 47,074.32 and 14,749.68

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Solution

The fourth proportional to 31,398.24, 47,074.32 and 14,749.68 is: 22,113.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,398.24 : 47,074.32 = 14,749.68 : x
  2. Step 2: Convert to fraction form
    31,398.24/47,074.32 = 14,749.68/x
  3. Step 3: Cross multiply
    31,398.24x = 47,074.32 × 14,749.68
  4. Step 4: Simplify right side
    31,398.24x = 694,331,156.22
  5. Step 5: Solve for x
    x = 694,331,156.22/31,398.24
  6. Step 6: Final answer
    x = 22,113.70

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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.