Home / 18,165.32-24,999.88-15,369.46

Finding the Fourth Proportional to 18,165.32, 24,999.88 and 15,369.46

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Solution

The fourth proportional to 18,165.32, 24,999.88 and 15,369.46 is: 21,152.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,165.32 : 24,999.88 = 15,369.46 : x
  2. Step 2: Convert to fraction form
    18,165.32/24,999.88 = 15,369.46/x
  3. Step 3: Cross multiply
    18,165.32x = 24,999.88 × 15,369.46
  4. Step 4: Simplify right side
    18,165.32x = 384,234,655.66
  5. Step 5: Solve for x
    x = 384,234,655.66/18,165.32
  6. Step 6: Final answer
    x = 21,152.10

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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.