Home / 40,877.61-61,294.82-21,152.49

Finding the Fourth Proportional to 40,877.61, 61,294.82 and 21,152.49

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Solution

The fourth proportional to 40,877.61, 61,294.82 and 21,152.49 is: 31,717.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,877.61 : 61,294.82 = 21,152.49 : x
  2. Step 2: Convert to fraction form
    40,877.61/61,294.82 = 21,152.49/x
  3. Step 3: Cross multiply
    40,877.61x = 61,294.82 × 21,152.49
  4. Step 4: Simplify right side
    40,877.61x = 1,296,537,961.34
  5. Step 5: Solve for x
    x = 1,296,537,961.34/40,877.61
  6. Step 6: Final answer
    x = 31,717.56

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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.