Home / 19,977.85-29,985.18-10,124.02

Finding the Fourth Proportional to 19,977.85, 29,985.18 and 10,124.02

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Solution

The fourth proportional to 19,977.85, 29,985.18 and 10,124.02 is: 15,195.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,977.85 : 29,985.18 = 10,124.02 : x
  2. Step 2: Convert to fraction form
    19,977.85/29,985.18 = 10,124.02/x
  3. Step 3: Cross multiply
    19,977.85x = 29,985.18 × 10,124.02
  4. Step 4: Simplify right side
    19,977.85x = 303,570,562.02
  5. Step 5: Solve for x
    x = 303,570,562.02/19,977.85
  6. Step 6: Final answer
    x = 15,195.36

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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.