Home / 31,856.02-47,792.16-18,719.44

Finding the Fourth Proportional to 31,856.02, 47,792.16 and 18,719.44

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Solution

The fourth proportional to 31,856.02, 47,792.16 and 18,719.44 is: 28,083.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,856.02 : 47,792.16 = 18,719.44 : x
  2. Step 2: Convert to fraction form
    31,856.02/47,792.16 = 18,719.44/x
  3. Step 3: Cross multiply
    31,856.02x = 47,792.16 × 18,719.44
  4. Step 4: Simplify right side
    31,856.02x = 894,642,471.59
  5. Step 5: Solve for x
    x = 894,642,471.59/31,856.02
  6. Step 6: Final answer
    x = 28,083.94

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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.