Home / 40,818.88-61,206.45-18,620.29

Finding the Fourth Proportional to 40,818.88, 61,206.45 and 18,620.29

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Solution

The fourth proportional to 40,818.88, 61,206.45 and 18,620.29 is: 27,920.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,818.88 : 61,206.45 = 18,620.29 : x
  2. Step 2: Convert to fraction form
    40,818.88/61,206.45 = 18,620.29/x
  3. Step 3: Cross multiply
    40,818.88x = 61,206.45 × 18,620.29
  4. Step 4: Simplify right side
    40,818.88x = 1,139,681,848.87
  5. Step 5: Solve for x
    x = 1,139,681,848.87/40,818.88
  6. Step 6: Final answer
    x = 27,920.46

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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.