Home / 16,991.10-25,470.45-13,240.80

Finding the Fourth Proportional to 16,991.10, 25,470.45 and 13,240.80

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Solution

The fourth proportional to 16,991.10, 25,470.45 and 13,240.80 is: 19,848.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,991.10 : 25,470.45 = 13,240.80 : x
  2. Step 2: Convert to fraction form
    16,991.10/25,470.45 = 13,240.80/x
  3. Step 3: Cross multiply
    16,991.10x = 25,470.45 × 13,240.80
  4. Step 4: Simplify right side
    16,991.10x = 337,249,134.36
  5. Step 5: Solve for x
    x = 337,249,134.36/16,991.10
  6. Step 6: Final answer
    x = 19,848.58

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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.