Home / 21,478.08-32,226.36-11,097.12

Finding the Fourth Proportional to 21,478.08, 32,226.36 and 11,097.12

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Solution

The fourth proportional to 21,478.08, 32,226.36 and 11,097.12 is: 16,650.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,478.08 : 32,226.36 = 11,097.12 : x
  2. Step 2: Convert to fraction form
    21,478.08/32,226.36 = 11,097.12/x
  3. Step 3: Cross multiply
    21,478.08x = 32,226.36 × 11,097.12
  4. Step 4: Simplify right side
    21,478.08x = 357,619,784.08
  5. Step 5: Solve for x
    x = 357,619,784.08/21,478.08
  6. Step 6: Final answer
    x = 16,650.45

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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.