Home / 16,989.80-25,412.70-15,247.40

Finding the Fourth Proportional to 16,989.80, 25,412.70 and 15,247.40

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Solution

The fourth proportional to 16,989.80, 25,412.70 and 15,247.40 is: 22,806.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,989.80 : 25,412.70 = 15,247.40 : x
  2. Step 2: Convert to fraction form
    16,989.80/25,412.70 = 15,247.40/x
  3. Step 3: Cross multiply
    16,989.80x = 25,412.70 × 15,247.40
  4. Step 4: Simplify right side
    16,989.80x = 387,477,601.98
  5. Step 5: Solve for x
    x = 387,477,601.98/16,989.80
  6. Step 6: Final answer
    x = 22,806.48

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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.