Home / 28,658.24-42,980.07-11,118.50

Finding the Fourth Proportional to 28,658.24, 42,980.07 and 11,118.50

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Solution

The fourth proportional to 28,658.24, 42,980.07 and 11,118.50 is: 16,674.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,658.24 : 42,980.07 = 11,118.50 : x
  2. Step 2: Convert to fraction form
    28,658.24/42,980.07 = 11,118.50/x
  3. Step 3: Cross multiply
    28,658.24x = 42,980.07 × 11,118.50
  4. Step 4: Simplify right side
    28,658.24x = 477,873,908.30
  5. Step 5: Solve for x
    x = 477,873,908.30/28,658.24
  6. Step 6: Final answer
    x = 16,674.92

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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.