Home / 28,298.84-42,448.10-7,238.85

Finding the Fourth Proportional to 28,298.84, 42,448.10 and 7,238.85

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Solution

The fourth proportional to 28,298.84, 42,448.10 and 7,238.85 is: 10,858.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,298.84 : 42,448.10 = 7,238.85 : x
  2. Step 2: Convert to fraction form
    28,298.84/42,448.10 = 7,238.85/x
  3. Step 3: Cross multiply
    28,298.84x = 42,448.10 × 7,238.85
  4. Step 4: Simplify right side
    28,298.84x = 307,275,216.44
  5. Step 5: Solve for x
    x = 307,275,216.44/28,298.84
  6. Step 6: Final answer
    x = 10,858.23

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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.