Home / 19,688.20-29,532.30-6,541.90

Finding the Fourth Proportional to 19,688.20, 29,532.30 and 6,541.90

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Solution

The fourth proportional to 19,688.20, 29,532.30 and 6,541.90 is: 9,812.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,688.20 : 29,532.30 = 6,541.90 : x
  2. Step 2: Convert to fraction form
    19,688.20/29,532.30 = 6,541.90/x
  3. Step 3: Cross multiply
    19,688.20x = 29,532.30 × 6,541.90
  4. Step 4: Simplify right side
    19,688.20x = 193,197,353.37
  5. Step 5: Solve for x
    x = 193,197,353.37/19,688.20
  6. Step 6: Final answer
    x = 9,812.85

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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.