Home / 28,306.78-42,459.68-7,246.62

Finding the Fourth Proportional to 28,306.78, 42,459.68 and 7,246.62

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Solution

The fourth proportional to 28,306.78, 42,459.68 and 7,246.62 is: 10,869.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,306.78 : 42,459.68 = 7,246.62 : x
  2. Step 2: Convert to fraction form
    28,306.78/42,459.68 = 7,246.62/x
  3. Step 3: Cross multiply
    28,306.78x = 42,459.68 × 7,246.62
  4. Step 4: Simplify right side
    28,306.78x = 307,689,166.28
  5. Step 5: Solve for x
    x = 307,689,166.28/28,306.78
  6. Step 6: Final answer
    x = 10,869.80

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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.