Home / 35,814.71-53,648.24-20,978.65

Finding the Fourth Proportional to 35,814.71, 53,648.24 and 20,978.65

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Solution

The fourth proportional to 35,814.71, 53,648.24 and 20,978.65 is: 31,424.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,814.71 : 53,648.24 = 20,978.65 : x
  2. Step 2: Convert to fraction form
    35,814.71/53,648.24 = 20,978.65/x
  3. Step 3: Cross multiply
    35,814.71x = 53,648.24 × 20,978.65
  4. Step 4: Simplify right side
    35,814.71x = 1,125,467,690.91
  5. Step 5: Solve for x
    x = 1,125,467,690.91/35,814.71
  6. Step 6: Final answer
    x = 31,424.73

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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.