Home / 21,344.34-29,456.94-11,785.10

Finding the Fourth Proportional to 21,344.34, 29,456.94 and 11,785.10

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Solution

The fourth proportional to 21,344.34, 29,456.94 and 11,785.10 is: 16,264.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,344.34 : 29,456.94 = 11,785.10 : x
  2. Step 2: Convert to fraction form
    21,344.34/29,456.94 = 11,785.10/x
  3. Step 3: Cross multiply
    21,344.34x = 29,456.94 × 11,785.10
  4. Step 4: Simplify right side
    21,344.34x = 347,152,983.59
  5. Step 5: Solve for x
    x = 347,152,983.59/21,344.34
  6. Step 6: Final answer
    x = 16,264.40

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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.