Home / 47,809.62-65,959.65-28,939.86

Finding the Fourth Proportional to 47,809.62, 65,959.65 and 28,939.86

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Solution

The fourth proportional to 47,809.62, 65,959.65 and 28,939.86 is: 39,926.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,809.62 : 65,959.65 = 28,939.86 : x
  2. Step 2: Convert to fraction form
    47,809.62/65,959.65 = 28,939.86/x
  3. Step 3: Cross multiply
    47,809.62x = 65,959.65 × 28,939.86
  4. Step 4: Simplify right side
    47,809.62x = 1,908,863,036.65
  5. Step 5: Solve for x
    x = 1,908,863,036.65/47,809.62
  6. Step 6: Final answer
    x = 39,926.34

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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.