Home / 15,911.80-23,867.70-13,724.80

Finding the Fourth Proportional to 15,911.80, 23,867.70 and 13,724.80

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Solution

The fourth proportional to 15,911.80, 23,867.70 and 13,724.80 is: 20,587.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,911.80 : 23,867.70 = 13,724.80 : x
  2. Step 2: Convert to fraction form
    15,911.80/23,867.70 = 13,724.80/x
  3. Step 3: Cross multiply
    15,911.80x = 23,867.70 × 13,724.80
  4. Step 4: Simplify right side
    15,911.80x = 327,579,408.96
  5. Step 5: Solve for x
    x = 327,579,408.96/15,911.80
  6. Step 6: Final answer
    x = 20,587.20

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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.