Home / 15,579.80-23,369.70-15,215.30

Finding the Fourth Proportional to 15,579.80, 23,369.70 and 15,215.30

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Solution

The fourth proportional to 15,579.80, 23,369.70 and 15,215.30 is: 22,822.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,579.80 : 23,369.70 = 15,215.30 : x
  2. Step 2: Convert to fraction form
    15,579.80/23,369.70 = 15,215.30/x
  3. Step 3: Cross multiply
    15,579.80x = 23,369.70 × 15,215.30
  4. Step 4: Simplify right side
    15,579.80x = 355,576,996.41
  5. Step 5: Solve for x
    x = 355,576,996.41/15,579.80
  6. Step 6: Final answer
    x = 22,822.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.