Home / 21,042.64-31,563.96-17,603.92

Finding the Fourth Proportional to 21,042.64, 31,563.96 and 17,603.92

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Solution

The fourth proportional to 21,042.64, 31,563.96 and 17,603.92 is: 26,405.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,042.64 : 31,563.96 = 17,603.92 : x
  2. Step 2: Convert to fraction form
    21,042.64/31,563.96 = 17,603.92/x
  3. Step 3: Cross multiply
    21,042.64x = 31,563.96 × 17,603.92
  4. Step 4: Simplify right side
    21,042.64x = 555,649,426.72
  5. Step 5: Solve for x
    x = 555,649,426.72/21,042.64
  6. Step 6: Final answer
    x = 26,405.88

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1.5x scale

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.