Home / 40,139.21-60,215.67-13,837.84

Finding the Fourth Proportional to 40,139.21, 60,215.67 and 13,837.84

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Solution

The fourth proportional to 40,139.21, 60,215.67 and 13,837.84 is: 20,759.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,139.21 : 60,215.67 = 13,837.84 : x
  2. Step 2: Convert to fraction form
    40,139.21/60,215.67 = 13,837.84/x
  3. Step 3: Cross multiply
    40,139.21x = 60,215.67 × 13,837.84
  4. Step 4: Simplify right side
    40,139.21x = 833,254,656.41
  5. Step 5: Solve for x
    x = 833,254,656.41/40,139.21
  6. Step 6: Final answer
    x = 20,759.12

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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.