Home / 21,196.08-29,255.91-12,248.79

Finding the Fourth Proportional to 21,196.08, 29,255.91 and 12,248.79

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Solution

The fourth proportional to 21,196.08, 29,255.91 and 12,248.79 is: 16,906.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,196.08 : 29,255.91 = 12,248.79 : x
  2. Step 2: Convert to fraction form
    21,196.08/29,255.91 = 12,248.79/x
  3. Step 3: Cross multiply
    21,196.08x = 29,255.91 × 12,248.79
  4. Step 4: Simplify right side
    21,196.08x = 358,349,497.85
  5. Step 5: Solve for x
    x = 358,349,497.85/21,196.08
  6. Step 6: Final answer
    x = 16,906.40

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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.