Home / 21,472.75-29,632.40-12,041.31

Finding the Fourth Proportional to 21,472.75, 29,632.40 and 12,041.31

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Solution

The fourth proportional to 21,472.75, 29,632.40 and 12,041.31 is: 16,617.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,472.75 : 29,632.40 = 12,041.31 : x
  2. Step 2: Convert to fraction form
    21,472.75/29,632.40 = 12,041.31/x
  3. Step 3: Cross multiply
    21,472.75x = 29,632.40 × 12,041.31
  4. Step 4: Simplify right side
    21,472.75x = 356,812,914.44
  5. Step 5: Solve for x
    x = 356,812,914.44/21,472.75
  6. Step 6: Final answer
    x = 16,617.01

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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.