Home / 31,941.35-47,921.28-13,217.93

Finding the Fourth Proportional to 31,941.35, 47,921.28 and 13,217.93

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Solution

The fourth proportional to 31,941.35, 47,921.28 and 13,217.93 is: 19,830.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,941.35 : 47,921.28 = 13,217.93 : x
  2. Step 2: Convert to fraction form
    31,941.35/47,921.28 = 13,217.93/x
  3. Step 3: Cross multiply
    31,941.35x = 47,921.28 × 13,217.93
  4. Step 4: Simplify right side
    31,941.35x = 633,420,058.46
  5. Step 5: Solve for x
    x = 633,420,058.46/31,941.35
  6. Step 6: Final answer
    x = 19,830.72

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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.