Home / 15,420.72-23,116.32-10,159.80

Finding the Fourth Proportional to 15,420.72, 23,116.32 and 10,159.80

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Solution

The fourth proportional to 15,420.72, 23,116.32 and 10,159.80 is: 15,229.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,420.72 : 23,116.32 = 10,159.80 : x
  2. Step 2: Convert to fraction form
    15,420.72/23,116.32 = 10,159.80/x
  3. Step 3: Cross multiply
    15,420.72x = 23,116.32 × 10,159.80
  4. Step 4: Simplify right side
    15,420.72x = 234,857,187.94
  5. Step 5: Solve for x
    x = 234,857,187.94/15,420.72
  6. Step 6: Final answer
    x = 15,229.98

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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.