Home / 21,515.94-29,676.06-12,562.92

Finding the Fourth Proportional to 21,515.94, 29,676.06 and 12,562.92

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Solution

The fourth proportional to 21,515.94, 29,676.06 and 12,562.92 is: 17,327.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,515.94 : 29,676.06 = 12,562.92 : x
  2. Step 2: Convert to fraction form
    21,515.94/29,676.06 = 12,562.92/x
  3. Step 3: Cross multiply
    21,515.94x = 29,676.06 × 12,562.92
  4. Step 4: Simplify right side
    21,515.94x = 372,817,967.70
  5. Step 5: Solve for x
    x = 372,817,967.70/21,515.94
  6. Step 6: Final answer
    x = 17,327.52

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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.