Home / 28,543.32-42,822.26-11,008.44

Finding the Fourth Proportional to 28,543.32, 42,822.26 and 11,008.44

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Solution

The fourth proportional to 28,543.32, 42,822.26 and 11,008.44 is: 16,515.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,543.32 : 42,822.26 = 11,008.44 : x
  2. Step 2: Convert to fraction form
    28,543.32/42,822.26 = 11,008.44/x
  3. Step 3: Cross multiply
    28,543.32x = 42,822.26 × 11,008.44
  4. Step 4: Simplify right side
    28,543.32x = 471,406,279.87
  5. Step 5: Solve for x
    x = 471,406,279.87/28,543.32
  6. Step 6: Final answer
    x = 16,515.47

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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.