Home / 23,290.30-32,138.99-13,218.95

Finding the Fourth Proportional to 23,290.30, 32,138.99 and 13,218.95

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Solution

The fourth proportional to 23,290.30, 32,138.99 and 13,218.95 is: 18,241.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,290.30 : 32,138.99 = 13,218.95 : x
  2. Step 2: Convert to fraction form
    23,290.30/32,138.99 = 13,218.95/x
  3. Step 3: Cross multiply
    23,290.30x = 32,138.99 × 13,218.95
  4. Step 4: Simplify right side
    23,290.30x = 424,843,659.26
  5. Step 5: Solve for x
    x = 424,843,659.26/23,290.30
  6. Step 6: Final answer
    x = 18,241.23

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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.