Home / 39,606.74-54,657.27-21,702.86

Finding the Fourth Proportional to 39,606.74, 54,657.27 and 21,702.86

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Solution

The fourth proportional to 39,606.74, 54,657.27 and 21,702.86 is: 29,949.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,606.74 : 54,657.27 = 21,702.86 : x
  2. Step 2: Convert to fraction form
    39,606.74/54,657.27 = 21,702.86/x
  3. Step 3: Cross multiply
    39,606.74x = 54,657.27 × 21,702.86
  4. Step 4: Simplify right side
    39,606.74x = 1,186,219,078.79
  5. Step 5: Solve for x
    x = 1,186,219,078.79/39,606.74
  6. Step 6: Final answer
    x = 29,949.93

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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.