Home / 28,353.11-42,533.64-9,638.46

Finding the Fourth Proportional to 28,353.11, 42,533.64 and 9,638.46

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Solution

The fourth proportional to 28,353.11, 42,533.64 and 9,638.46 is: 14,459.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,353.11 : 42,533.64 = 9,638.46 : x
  2. Step 2: Convert to fraction form
    28,353.11/42,533.64 = 9,638.46/x
  3. Step 3: Cross multiply
    28,353.11x = 42,533.64 × 9,638.46
  4. Step 4: Simplify right side
    28,353.11x = 409,958,787.79
  5. Step 5: Solve for x
    x = 409,958,787.79/28,353.11
  6. Step 6: Final answer
    x = 14,459.04

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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.