Home / 28,740.29-43,127.64-12,099.24

Finding the Fourth Proportional to 28,740.29, 43,127.64 and 12,099.24

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Solution

The fourth proportional to 28,740.29, 43,127.64 and 12,099.24 is: 18,156.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,740.29 : 43,127.64 = 12,099.24 : x
  2. Step 2: Convert to fraction form
    28,740.29/43,127.64 = 12,099.24/x
  3. Step 3: Cross multiply
    28,740.29x = 43,127.64 × 12,099.24
  4. Step 4: Simplify right side
    28,740.29x = 521,811,666.99
  5. Step 5: Solve for x
    x = 521,811,666.99/28,740.29
  6. Step 6: Final answer
    x = 18,156.11

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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.