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Finding the Fourth Proportional to 21,254.70, 32,041.23 and 19,827.48

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Solution

The fourth proportional to 21,254.70, 32,041.23 and 19,827.48 is: 29,889.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,254.70 : 32,041.23 = 19,827.48 : x
  2. Step 2: Convert to fraction form
    21,254.70/32,041.23 = 19,827.48/x
  3. Step 3: Cross multiply
    21,254.70x = 32,041.23 × 19,827.48
  4. Step 4: Simplify right side
    21,254.70x = 635,296,847.00
  5. Step 5: Solve for x
    x = 635,296,847.00/21,254.70
  6. Step 6: Final answer
    x = 29,889.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.