Home / 28,228.67-42,306.09-11,569.20

Finding the Fourth Proportional to 28,228.67, 42,306.09 and 11,569.20

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Solution

The fourth proportional to 28,228.67, 42,306.09 and 11,569.20 is: 17,338.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,228.67 : 42,306.09 = 11,569.20 : x
  2. Step 2: Convert to fraction form
    28,228.67/42,306.09 = 11,569.20/x
  3. Step 3: Cross multiply
    28,228.67x = 42,306.09 × 11,569.20
  4. Step 4: Simplify right side
    28,228.67x = 489,447,616.43
  5. Step 5: Solve for x
    x = 489,447,616.43/28,228.67
  6. Step 6: Final answer
    x = 17,338.67

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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.