Home / 21,227.04-29,294.80-12,276.32

Finding the Fourth Proportional to 21,227.04, 29,294.80 and 12,276.32

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Solution

The fourth proportional to 21,227.04, 29,294.80 and 12,276.32 is: 16,942.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,227.04 : 29,294.80 = 12,276.32 : x
  2. Step 2: Convert to fraction form
    21,227.04/29,294.80 = 12,276.32/x
  3. Step 3: Cross multiply
    21,227.04x = 29,294.80 × 12,276.32
  4. Step 4: Simplify right side
    21,227.04x = 359,632,339.14
  5. Step 5: Solve for x
    x = 359,632,339.14/21,227.04
  6. Step 6: Final answer
    x = 16,942.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.