Home / 28,947.98-39,949.35-18,883.10

Finding the Fourth Proportional to 28,947.98, 39,949.35 and 18,883.10

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Solution

The fourth proportional to 28,947.98, 39,949.35 and 18,883.10 is: 26,059.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,947.98 : 39,949.35 = 18,883.10 : x
  2. Step 2: Convert to fraction form
    28,947.98/39,949.35 = 18,883.10/x
  3. Step 3: Cross multiply
    28,947.98x = 39,949.35 × 18,883.10
  4. Step 4: Simplify right side
    28,947.98x = 754,367,570.99
  5. Step 5: Solve for x
    x = 754,367,570.99/28,947.98
  6. Step 6: Final answer
    x = 26,059.42

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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.