Home / 25,756.16-35,523.20-16,806.40

Finding the Fourth Proportional to 25,756.16, 35,523.20 and 16,806.40

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Solution

The fourth proportional to 25,756.16, 35,523.20 and 16,806.40 is: 23,179.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,756.16 : 35,523.20 = 16,806.40 : x
  2. Step 2: Convert to fraction form
    25,756.16/35,523.20 = 16,806.40/x
  3. Step 3: Cross multiply
    25,756.16x = 35,523.20 × 16,806.40
  4. Step 4: Simplify right side
    25,756.16x = 597,017,108.48
  5. Step 5: Solve for x
    x = 597,017,108.48/25,756.16
  6. Step 6: Final answer
    x = 23,179.59

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1.5x scale

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.