Home / 28,400.17-42,606.51-8,680.26

Finding the Fourth Proportional to 28,400.17, 42,606.51 and 8,680.26

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Solution

The fourth proportional to 28,400.17, 42,606.51 and 8,680.26 is: 13,022.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,400.17 : 42,606.51 = 8,680.26 : x
  2. Step 2: Convert to fraction form
    28,400.17/42,606.51 = 8,680.26/x
  3. Step 3: Cross multiply
    28,400.17x = 42,606.51 × 8,680.26
  4. Step 4: Simplify right side
    28,400.17x = 369,835,711.72
  5. Step 5: Solve for x
    x = 369,835,711.72/28,400.17
  6. Step 6: Final answer
    x = 13,022.31

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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.