Home / 28,905.40-43,352.64-9,184.14

Finding the Fourth Proportional to 28,905.40, 43,352.64 and 9,184.14

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Solution

The fourth proportional to 28,905.40, 43,352.64 and 9,184.14 is: 13,774.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,905.40 : 43,352.64 = 9,184.14 : x
  2. Step 2: Convert to fraction form
    28,905.40/43,352.64 = 9,184.14/x
  3. Step 3: Cross multiply
    28,905.40x = 43,352.64 × 9,184.14
  4. Step 4: Simplify right side
    28,905.40x = 398,156,715.13
  5. Step 5: Solve for x
    x = 398,156,715.13/28,905.40
  6. Step 6: Final answer
    x = 13,774.48

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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.