Home / 21,224.08-29,294.49-12,276.76

Finding the Fourth Proportional to 21,224.08, 29,294.49 and 12,276.76

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Solution

The fourth proportional to 21,224.08, 29,294.49 and 12,276.76 is: 16,944.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,224.08 : 29,294.49 = 12,276.76 : x
  2. Step 2: Convert to fraction form
    21,224.08/29,294.49 = 12,276.76/x
  3. Step 3: Cross multiply
    21,224.08x = 29,294.49 × 12,276.76
  4. Step 4: Simplify right side
    21,224.08x = 359,641,423.05
  5. Step 5: Solve for x
    x = 359,641,423.05/21,224.08
  6. Step 6: Final answer
    x = 16,944.97

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Double scale
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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.