Home / 28,222.24-42,250.31-18,838.98

Finding the Fourth Proportional to 28,222.24, 42,250.31 and 18,838.98

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Solution

The fourth proportional to 28,222.24, 42,250.31 and 18,838.98 is: 28,203.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,222.24 : 42,250.31 = 18,838.98 : x
  2. Step 2: Convert to fraction form
    28,222.24/42,250.31 = 18,838.98/x
  3. Step 3: Cross multiply
    28,222.24x = 42,250.31 × 18,838.98
  4. Step 4: Simplify right side
    28,222.24x = 795,952,950.62
  5. Step 5: Solve for x
    x = 795,952,950.62/28,222.24
  6. Step 6: Final answer
    x = 28,203.04

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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.