Home / 21,403.44-29,538-16,088.76

Finding the Fourth Proportional to 21,403.44, 29,538 and 16,088.76

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Solution

The fourth proportional to 21,403.44, 29,538 and 16,088.76 is: 22,203.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,403.44 : 29,538 = 16,088.76 : x
  2. Step 2: Convert to fraction form
    21,403.44/29,538 = 16,088.76/x
  3. Step 3: Cross multiply
    21,403.44x = 29,538 × 16,088.76
  4. Step 4: Simplify right side
    21,403.44x = 475,229,792.88
  5. Step 5: Solve for x
    x = 475,229,792.88/21,403.44
  6. Step 6: Final answer
    x = 22,203.43

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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.