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Finding the Fourth Proportional to 28,950.10, 43,427.55 and 9,228.10

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Solution

The fourth proportional to 28,950.10, 43,427.55 and 9,228.10 is: 13,842.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,950.10 : 43,427.55 = 9,228.10 : x
  2. Step 2: Convert to fraction form
    28,950.10/43,427.55 = 9,228.10/x
  3. Step 3: Cross multiply
    28,950.10x = 43,427.55 × 9,228.10
  4. Step 4: Simplify right side
    28,950.10x = 400,753,774.16
  5. Step 5: Solve for x
    x = 400,753,774.16/28,950.10
  6. Step 6: Final answer
    x = 13,842.92

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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.