Home / 28,348.35-42,418.54-23,656.78

Finding the Fourth Proportional to 28,348.35, 42,418.54 and 23,656.78

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Solution

The fourth proportional to 28,348.35, 42,418.54 and 23,656.78 is: 35,398.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,348.35 : 42,418.54 = 23,656.78 : x
  2. Step 2: Convert to fraction form
    28,348.35/42,418.54 = 23,656.78/x
  3. Step 3: Cross multiply
    28,348.35x = 42,418.54 × 23,656.78
  4. Step 4: Simplify right side
    28,348.35x = 1,003,486,137.53
  5. Step 5: Solve for x
    x = 1,003,486,137.53/28,348.35
  6. Step 6: Final answer
    x = 35,398.39

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1.5x scale

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.