Home / 23,825.80-32,878.48-13,215.20

Finding the Fourth Proportional to 23,825.80, 32,878.48 and 13,215.20

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Solution

The fourth proportional to 23,825.80, 32,878.48 and 13,215.20 is: 18,236.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,825.80 : 32,878.48 = 13,215.20 : x
  2. Step 2: Convert to fraction form
    23,825.80/32,878.48 = 13,215.20/x
  3. Step 3: Cross multiply
    23,825.80x = 32,878.48 × 13,215.20
  4. Step 4: Simplify right side
    23,825.80x = 434,495,688.90
  5. Step 5: Solve for x
    x = 434,495,688.90/23,825.80
  6. Step 6: Final answer
    x = 18,236.35

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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.