Home / 21,209.68-29,267.88-12,250.16

Finding the Fourth Proportional to 21,209.68, 29,267.88 and 12,250.16

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Solution

The fourth proportional to 21,209.68, 29,267.88 and 12,250.16 is: 16,904.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,209.68 : 29,267.88 = 12,250.16 : x
  2. Step 2: Convert to fraction form
    21,209.68/29,267.88 = 12,250.16/x
  3. Step 3: Cross multiply
    21,209.68x = 29,267.88 × 12,250.16
  4. Step 4: Simplify right side
    21,209.68x = 358,536,212.86
  5. Step 5: Solve for x
    x = 358,536,212.86/21,209.68
  6. Step 6: Final answer
    x = 16,904.37

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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.