Home / 28,666.81-42,989.14-11,134.27

Finding the Fourth Proportional to 28,666.81, 42,989.14 and 11,134.27

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Solution

The fourth proportional to 28,666.81, 42,989.14 and 11,134.27 is: 16,697.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,666.81 : 42,989.14 = 11,134.27 : x
  2. Step 2: Convert to fraction form
    28,666.81/42,989.14 = 11,134.27/x
  3. Step 3: Cross multiply
    28,666.81x = 42,989.14 × 11,134.27
  4. Step 4: Simplify right side
    28,666.81x = 478,652,691.83
  5. Step 5: Solve for x
    x = 478,652,691.83/28,666.81
  6. Step 6: Final answer
    x = 16,697.10

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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.