Home / 28,377.87-42,566.68-8,656.36

Finding the Fourth Proportional to 28,377.87, 42,566.68 and 8,656.36

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Solution

The fourth proportional to 28,377.87, 42,566.68 and 8,656.36 is: 12,984.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,377.87 : 42,566.68 = 8,656.36 : x
  2. Step 2: Convert to fraction form
    28,377.87/42,566.68 = 8,656.36/x
  3. Step 3: Cross multiply
    28,377.87x = 42,566.68 × 8,656.36
  4. Step 4: Simplify right side
    28,377.87x = 368,472,410.49
  5. Step 5: Solve for x
    x = 368,472,410.49/28,377.87
  6. Step 6: Final answer
    x = 12,984.50

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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.