Home / 28,972.66-39,983.15-16,225.81

Finding the Fourth Proportional to 28,972.66, 39,983.15 and 16,225.81

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Solution

The fourth proportional to 28,972.66, 39,983.15 and 16,225.81 is: 22,392.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,972.66 : 39,983.15 = 16,225.81 : x
  2. Step 2: Convert to fraction form
    28,972.66/39,983.15 = 16,225.81/x
  3. Step 3: Cross multiply
    28,972.66x = 39,983.15 × 16,225.81
  4. Step 4: Simplify right side
    28,972.66x = 648,758,874.86
  5. Step 5: Solve for x
    x = 648,758,874.86/28,972.66
  6. Step 6: Final answer
    x = 22,392.11

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.