Home / 47,699.78-65,831.76-28,836.86

Finding the Fourth Proportional to 47,699.78, 65,831.76 and 28,836.86

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Solution

The fourth proportional to 47,699.78, 65,831.76 and 28,836.86 is: 39,798.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,699.78 : 65,831.76 = 28,836.86 : x
  2. Step 2: Convert to fraction form
    47,699.78/65,831.76 = 28,836.86/x
  3. Step 3: Cross multiply
    47,699.78x = 65,831.76 × 28,836.86
  4. Step 4: Simplify right side
    47,699.78x = 1,898,381,246.67
  5. Step 5: Solve for x
    x = 1,898,381,246.67/47,699.78
  6. Step 6: Final answer
    x = 39,798.53

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.