Home / 31,938.91-47,926.79-14,408.72

Finding the Fourth Proportional to 31,938.91, 47,926.79 and 14,408.72

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Solution

The fourth proportional to 31,938.91, 47,926.79 and 14,408.72 is: 21,621.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,938.91 : 47,926.79 = 14,408.72 : x
  2. Step 2: Convert to fraction form
    31,938.91/47,926.79 = 14,408.72/x
  3. Step 3: Cross multiply
    31,938.91x = 47,926.79 × 14,408.72
  4. Step 4: Simplify right side
    31,938.91x = 690,563,619.69
  5. Step 5: Solve for x
    x = 690,563,619.69/31,938.91
  6. Step 6: Final answer
    x = 21,621.39

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1.5x scale

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.