Home / 40,729.02-61,126.53-21,013.21

Finding the Fourth Proportional to 40,729.02, 61,126.53 and 21,013.21

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Solution

The fourth proportional to 40,729.02, 61,126.53 and 21,013.21 is: 31,536.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,729.02 : 61,126.53 = 21,013.21 : x
  2. Step 2: Convert to fraction form
    40,729.02/61,126.53 = 21,013.21/x
  3. Step 3: Cross multiply
    40,729.02x = 61,126.53 × 21,013.21
  4. Step 4: Simplify right side
    40,729.02x = 1,284,464,611.46
  5. Step 5: Solve for x
    x = 1,284,464,611.46/40,729.02
  6. Step 6: Final answer
    x = 31,536.84

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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.