Home / 28,760.64-43,140.96-16,440

Finding the Fourth Proportional to 28,760.64, 43,140.96 and 16,440

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Solution

The fourth proportional to 28,760.64, 43,140.96 and 16,440 is: 24,660

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,760.64 : 43,140.96 = 16,440 : x
  2. Step 2: Convert to fraction form
    28,760.64/43,140.96 = 16,440/x
  3. Step 3: Cross multiply
    28,760.64x = 43,140.96 × 16,440
  4. Step 4: Simplify right side
    28,760.64x = 709,237,382.40
  5. Step 5: Solve for x
    x = 709,237,382.40/28,760.64
  6. Step 6: Final answer
    x = 24,660

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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.