Home / 21,551.40-29,760.48-16,236.99

Finding the Fourth Proportional to 21,551.40, 29,760.48 and 16,236.99

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Solution

The fourth proportional to 21,551.40, 29,760.48 and 16,236.99 is: 22,421.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,551.40 : 29,760.48 = 16,236.99 : x
  2. Step 2: Convert to fraction form
    21,551.40/29,760.48 = 16,236.99/x
  3. Step 3: Cross multiply
    21,551.40x = 29,760.48 × 16,236.99
  4. Step 4: Simplify right side
    21,551.40x = 483,220,616.16
  5. Step 5: Solve for x
    x = 483,220,616.16/21,551.40
  6. Step 6: Final answer
    x = 22,421.77

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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.