Home / 28,656.18-39,543.39-16,078.50

Finding the Fourth Proportional to 28,656.18, 39,543.39 and 16,078.50

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Solution

The fourth proportional to 28,656.18, 39,543.39 and 16,078.50 is: 22,187.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,656.18 : 39,543.39 = 16,078.50 : x
  2. Step 2: Convert to fraction form
    28,656.18/39,543.39 = 16,078.50/x
  3. Step 3: Cross multiply
    28,656.18x = 39,543.39 × 16,078.50
  4. Step 4: Simplify right side
    28,656.18x = 635,798,396.12
  5. Step 5: Solve for x
    x = 635,798,396.12/28,656.18
  6. Step 6: Final answer
    x = 22,187.13

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.