Home / 31,734.40-47,617.90-13,977.50

Finding the Fourth Proportional to 31,734.40, 47,617.90 and 13,977.50

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Solution

The fourth proportional to 31,734.40, 47,617.90 and 13,977.50 is: 20,973.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,734.40 : 47,617.90 = 13,977.50 : x
  2. Step 2: Convert to fraction form
    31,734.40/47,617.90 = 13,977.50/x
  3. Step 3: Cross multiply
    31,734.40x = 47,617.90 × 13,977.50
  4. Step 4: Simplify right side
    31,734.40x = 665,579,197.25
  5. Step 5: Solve for x
    x = 665,579,197.25/31,734.40
  6. Step 6: Final answer
    x = 20,973.43

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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.