Home / 21,410.75-32,129.10-9,098.75

Finding the Fourth Proportional to 21,410.75, 32,129.10 and 9,098.75

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Solution

The fourth proportional to 21,410.75, 32,129.10 and 9,098.75 is: 13,653.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,410.75 : 32,129.10 = 9,098.75 : x
  2. Step 2: Convert to fraction form
    21,410.75/32,129.10 = 9,098.75/x
  3. Step 3: Cross multiply
    21,410.75x = 32,129.10 × 9,098.75
  4. Step 4: Simplify right side
    21,410.75x = 292,334,648.63
  5. Step 5: Solve for x
    x = 292,334,648.63/21,410.75
  6. Step 6: Final answer
    x = 13,653.64

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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.