Home / 23,685.90-32,688.78-13,620.24

Finding the Fourth Proportional to 23,685.90, 32,688.78 and 13,620.24

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Solution

The fourth proportional to 23,685.90, 32,688.78 and 13,620.24 is: 18,797.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,685.90 : 32,688.78 = 13,620.24 : x
  2. Step 2: Convert to fraction form
    23,685.90/32,688.78 = 13,620.24/x
  3. Step 3: Cross multiply
    23,685.90x = 32,688.78 × 13,620.24
  4. Step 4: Simplify right side
    23,685.90x = 445,228,797.36
  5. Step 5: Solve for x
    x = 445,228,797.36/23,685.90
  6. Step 6: Final answer
    x = 18,797.21

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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.