Home / 28,454.87-42,677.49-10,439.39

Finding the Fourth Proportional to 28,454.87, 42,677.49 and 10,439.39

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Solution

The fourth proportional to 28,454.87, 42,677.49 and 10,439.39 is: 15,657.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,454.87 : 42,677.49 = 10,439.39 : x
  2. Step 2: Convert to fraction form
    28,454.87/42,677.49 = 10,439.39/x
  3. Step 3: Cross multiply
    28,454.87x = 42,677.49 × 10,439.39
  4. Step 4: Simplify right side
    28,454.87x = 445,526,748.94
  5. Step 5: Solve for x
    x = 445,526,748.94/28,454.87
  6. Step 6: Final answer
    x = 15,657.31

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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.