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Finding the Fourth Proportional to 21,370.96, 32,028.80 and 10,254.48

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Solution

The fourth proportional to 21,370.96, 32,028.80 and 10,254.48 is: 15,368.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,370.96 : 32,028.80 = 10,254.48 : x
  2. Step 2: Convert to fraction form
    21,370.96/32,028.80 = 10,254.48/x
  3. Step 3: Cross multiply
    21,370.96x = 32,028.80 × 10,254.48
  4. Step 4: Simplify right side
    21,370.96x = 328,438,689.02
  5. Step 5: Solve for x
    x = 328,438,689.02/21,370.96
  6. Step 6: Final answer
    x = 15,368.46

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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.