Home / 28,306.20-42,459.30-7,246.20

Finding the Fourth Proportional to 28,306.20, 42,459.30 and 7,246.20

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Solution

The fourth proportional to 28,306.20, 42,459.30 and 7,246.20 is: 10,869.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,306.20 : 42,459.30 = 7,246.20 : x
  2. Step 2: Convert to fraction form
    28,306.20/42,459.30 = 7,246.20/x
  3. Step 3: Cross multiply
    28,306.20x = 42,459.30 × 7,246.20
  4. Step 4: Simplify right side
    28,306.20x = 307,668,579.66
  5. Step 5: Solve for x
    x = 307,668,579.66/28,306.20
  6. Step 6: Final answer
    x = 10,869.30

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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.