Home / 23,289-32,141.25-13,220.16

Finding the Fourth Proportional to 23,289, 32,141.25 and 13,220.16

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Solution

The fourth proportional to 23,289, 32,141.25 and 13,220.16 is: 18,245.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,289 : 32,141.25 = 13,220.16 : x
  2. Step 2: Convert to fraction form
    23,289/32,141.25 = 13,220.16/x
  3. Step 3: Cross multiply
    23,289x = 32,141.25 × 13,220.16
  4. Step 4: Simplify right side
    23,289x = 424,912,467.60
  5. Step 5: Solve for x
    x = 424,912,467.60/23,289
  6. Step 6: Final answer
    x = 18,245.20

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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.