Home / 21,410.15-32,119.34-6,618.53

Finding the Fourth Proportional to 21,410.15, 32,119.34 and 6,618.53

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Solution

The fourth proportional to 21,410.15, 32,119.34 and 6,618.53 is: 9,929.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,410.15 : 32,119.34 = 6,618.53 : x
  2. Step 2: Convert to fraction form
    21,410.15/32,119.34 = 6,618.53/x
  3. Step 3: Cross multiply
    21,410.15x = 32,119.34 × 6,618.53
  4. Step 4: Simplify right side
    21,410.15x = 212,582,862.58
  5. Step 5: Solve for x
    x = 212,582,862.58/21,410.15
  6. Step 6: Final answer
    x = 9,929.07

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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.