Home / 28,702.68-43,057.32-7,643.02

Finding the Fourth Proportional to 28,702.68, 43,057.32 and 7,643.02

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Solution

The fourth proportional to 28,702.68, 43,057.32 and 7,643.02 is: 11,465.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,702.68 : 43,057.32 = 7,643.02 : x
  2. Step 2: Convert to fraction form
    28,702.68/43,057.32 = 7,643.02/x
  3. Step 3: Cross multiply
    28,702.68x = 43,057.32 × 7,643.02
  4. Step 4: Simplify right side
    28,702.68x = 329,087,957.91
  5. Step 5: Solve for x
    x = 329,087,957.91/28,702.68
  6. Step 6: Final answer
    x = 11,465.41

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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.