Home / 39,747.20-59,648.73-18,688.20

Finding the Fourth Proportional to 39,747.20, 59,648.73 and 18,688.20

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Solution

The fourth proportional to 39,747.20, 59,648.73 and 18,688.20 is: 28,045.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,747.20 : 59,648.73 = 18,688.20 : x
  2. Step 2: Convert to fraction form
    39,747.20/59,648.73 = 18,688.20/x
  3. Step 3: Cross multiply
    39,747.20x = 59,648.73 × 18,688.20
  4. Step 4: Simplify right side
    39,747.20x = 1,114,727,395.99
  5. Step 5: Solve for x
    x = 1,114,727,395.99/39,747.20
  6. Step 6: Final answer
    x = 28,045.44

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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.