Home / 28,222.32-42,343.66-10,692

Finding the Fourth Proportional to 28,222.32, 42,343.66 and 10,692

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Solution

The fourth proportional to 28,222.32, 42,343.66 and 10,692 is: 16,041.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,222.32 : 42,343.66 = 10,692 : x
  2. Step 2: Convert to fraction form
    28,222.32/42,343.66 = 10,692/x
  3. Step 3: Cross multiply
    28,222.32x = 42,343.66 × 10,692
  4. Step 4: Simplify right side
    28,222.32x = 452,738,426.09
  5. Step 5: Solve for x
    x = 452,738,426.09/28,222.32
  6. Step 6: Final answer
    x = 16,041.86

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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.