Home / 28,219.46-38,943.23-15,472.62

Finding the Fourth Proportional to 28,219.46, 38,943.23 and 15,472.62

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Solution

The fourth proportional to 28,219.46, 38,943.23 and 15,472.62 is: 21,352.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,219.46 : 38,943.23 = 15,472.62 : x
  2. Step 2: Convert to fraction form
    28,219.46/38,943.23 = 15,472.62/x
  3. Step 3: Cross multiply
    28,219.46x = 38,943.23 × 15,472.62
  4. Step 4: Simplify right side
    28,219.46x = 602,553,692.01
  5. Step 5: Solve for x
    x = 602,553,692.01/28,219.46
  6. Step 6: Final answer
    x = 21,352.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.