Home / 21,511.08-32,275.86-11,130.12

Finding the Fourth Proportional to 21,511.08, 32,275.86 and 11,130.12

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Solution

The fourth proportional to 21,511.08, 32,275.86 and 11,130.12 is: 16,699.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,511.08 : 32,275.86 = 11,130.12 : x
  2. Step 2: Convert to fraction form
    21,511.08/32,275.86 = 11,130.12/x
  3. Step 3: Cross multiply
    21,511.08x = 32,275.86 × 11,130.12
  4. Step 4: Simplify right side
    21,511.08x = 359,234,194.90
  5. Step 5: Solve for x
    x = 359,234,194.90/21,511.08
  6. Step 6: Final answer
    x = 16,699.96

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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.