Home / 32,931.20-49,421.10-13,223.90

Finding the Fourth Proportional to 32,931.20, 49,421.10 and 13,223.90

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Solution

The fourth proportional to 32,931.20, 49,421.10 and 13,223.90 is: 19,845.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,931.20 : 49,421.10 = 13,223.90 : x
  2. Step 2: Convert to fraction form
    32,931.20/49,421.10 = 13,223.90/x
  3. Step 3: Cross multiply
    32,931.20x = 49,421.10 × 13,223.90
  4. Step 4: Simplify right side
    32,931.20x = 653,539,684.29
  5. Step 5: Solve for x
    x = 653,539,684.29/32,931.20
  6. Step 6: Final answer
    x = 19,845.61

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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.