Home / 28,043.54-38,690.38-17,977.54

Finding the Fourth Proportional to 28,043.54, 38,690.38 and 17,977.54

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Solution

The fourth proportional to 28,043.54, 38,690.38 and 17,977.54 is: 24,802.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,043.54 : 38,690.38 = 17,977.54 : x
  2. Step 2: Convert to fraction form
    28,043.54/38,690.38 = 17,977.54/x
  3. Step 3: Cross multiply
    28,043.54x = 38,690.38 × 17,977.54
  4. Step 4: Simplify right side
    28,043.54x = 695,557,712.40
  5. Step 5: Solve for x
    x = 695,557,712.40/28,043.54
  6. Step 6: Final answer
    x = 24,802.78

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1.5x scale

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.