Home / 21,184.71-31,900.96-15,676.92

Finding the Fourth Proportional to 21,184.71, 31,900.96 and 15,676.92

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Solution

The fourth proportional to 21,184.71, 31,900.96 and 15,676.92 is: 23,607.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,184.71 : 31,900.96 = 15,676.92 : x
  2. Step 2: Convert to fraction form
    21,184.71/31,900.96 = 15,676.92/x
  3. Step 3: Cross multiply
    21,184.71x = 31,900.96 × 15,676.92
  4. Step 4: Simplify right side
    21,184.71x = 500,108,797.84
  5. Step 5: Solve for x
    x = 500,108,797.84/21,184.71
  6. Step 6: Final answer
    x = 23,607.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.