Home / 17,138.79-25,675.38-13,803.62

Finding the Fourth Proportional to 17,138.79, 25,675.38 and 13,803.62

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Solution

The fourth proportional to 17,138.79, 25,675.38 and 13,803.62 is: 20,679.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,138.79 : 25,675.38 = 13,803.62 : x
  2. Step 2: Convert to fraction form
    17,138.79/25,675.38 = 13,803.62/x
  3. Step 3: Cross multiply
    17,138.79x = 25,675.38 × 13,803.62
  4. Step 4: Simplify right side
    17,138.79x = 354,413,060.50
  5. Step 5: Solve for x
    x = 354,413,060.50/17,138.79
  6. Step 6: Final answer
    x = 20,679.00

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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.