Home / 19,935.48-29,911.86-10,690.68

Finding the Fourth Proportional to 19,935.48, 29,911.86 and 10,690.68

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Solution

The fourth proportional to 19,935.48, 29,911.86 and 10,690.68 is: 16,040.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,935.48 : 29,911.86 = 10,690.68 : x
  2. Step 2: Convert to fraction form
    19,935.48/29,911.86 = 10,690.68/x
  3. Step 3: Cross multiply
    19,935.48x = 29,911.86 × 10,690.68
  4. Step 4: Simplify right side
    19,935.48x = 319,778,123.46
  5. Step 5: Solve for x
    x = 319,778,123.46/19,935.48
  6. Step 6: Final answer
    x = 16,040.65

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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.