Home / 40,827.48-61,213.37-20,787.72

Finding the Fourth Proportional to 40,827.48, 61,213.37 and 20,787.72

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Solution

The fourth proportional to 40,827.48, 61,213.37 and 20,787.72 is: 31,167.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,827.48 : 61,213.37 = 20,787.72 : x
  2. Step 2: Convert to fraction form
    40,827.48/61,213.37 = 20,787.72/x
  3. Step 3: Cross multiply
    40,827.48x = 61,213.37 × 20,787.72
  4. Step 4: Simplify right side
    40,827.48x = 1,272,486,395.82
  5. Step 5: Solve for x
    x = 1,272,486,395.82/40,827.48
  6. Step 6: Final answer
    x = 31,167.40

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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.