Home / 21,042.24-29,025.36-12,538.50

Finding the Fourth Proportional to 21,042.24, 29,025.36 and 12,538.50

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Solution

The fourth proportional to 21,042.24, 29,025.36 and 12,538.50 is: 17,295.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,042.24 : 29,025.36 = 12,538.50 : x
  2. Step 2: Convert to fraction form
    21,042.24/29,025.36 = 12,538.50/x
  3. Step 3: Cross multiply
    21,042.24x = 29,025.36 × 12,538.50
  4. Step 4: Simplify right side
    21,042.24x = 363,934,476.36
  5. Step 5: Solve for x
    x = 363,934,476.36/21,042.24
  6. Step 6: Final answer
    x = 17,295.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.