Home / 15,621.40-23,435.22-5,760.72

Finding the Fourth Proportional to 15,621.40, 23,435.22 and 5,760.72

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Solution

The fourth proportional to 15,621.40, 23,435.22 and 5,760.72 is: 8,642.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,621.40 : 23,435.22 = 5,760.72 : x
  2. Step 2: Convert to fraction form
    15,621.40/23,435.22 = 5,760.72/x
  3. Step 3: Cross multiply
    15,621.40x = 23,435.22 × 5,760.72
  4. Step 4: Simplify right side
    15,621.40x = 135,003,740.56
  5. Step 5: Solve for x
    x = 135,003,740.56/15,621.40
  6. Step 6: Final answer
    x = 8,642.23

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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.