Home / 21,486.78-32,230.20-5,904.42

Finding the Fourth Proportional to 21,486.78, 32,230.20 and 5,904.42

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Solution

The fourth proportional to 21,486.78, 32,230.20 and 5,904.42 is: 8,856.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,486.78 : 32,230.20 = 5,904.42 : x
  2. Step 2: Convert to fraction form
    21,486.78/32,230.20 = 5,904.42/x
  3. Step 3: Cross multiply
    21,486.78x = 32,230.20 × 5,904.42
  4. Step 4: Simplify right side
    21,486.78x = 190,300,637.48
  5. Step 5: Solve for x
    x = 190,300,637.48/21,486.78
  6. Step 6: Final answer
    x = 8,856.64

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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.