Home / 28,191.46-42,288.21-9,472.11

Finding the Fourth Proportional to 28,191.46, 42,288.21 and 9,472.11

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Solution

The fourth proportional to 28,191.46, 42,288.21 and 9,472.11 is: 14,208.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,191.46 : 42,288.21 = 9,472.11 : x
  2. Step 2: Convert to fraction form
    28,191.46/42,288.21 = 9,472.11/x
  3. Step 3: Cross multiply
    28,191.46x = 42,288.21 × 9,472.11
  4. Step 4: Simplify right side
    28,191.46x = 400,558,418.24
  5. Step 5: Solve for x
    x = 400,558,418.24/28,191.46
  6. Step 6: Final answer
    x = 14,208.50

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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.