Home / 31,831.02-47,730.11-14,285.84

Finding the Fourth Proportional to 31,831.02, 47,730.11 and 14,285.84

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Solution

The fourth proportional to 31,831.02, 47,730.11 and 14,285.84 is: 21,421.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,831.02 : 47,730.11 = 14,285.84 : x
  2. Step 2: Convert to fraction form
    31,831.02/47,730.11 = 14,285.84/x
  3. Step 3: Cross multiply
    31,831.02x = 47,730.11 × 14,285.84
  4. Step 4: Simplify right side
    31,831.02x = 681,864,404.56
  5. Step 5: Solve for x
    x = 681,864,404.56/31,831.02
  6. Step 6: Final answer
    x = 21,421.38

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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.