Home / 21,299.86-29,394.80-12,350.17

Finding the Fourth Proportional to 21,299.86, 29,394.80 and 12,350.17

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Solution

The fourth proportional to 21,299.86, 29,394.80 and 12,350.17 is: 17,043.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,299.86 : 29,394.80 = 12,350.17 : x
  2. Step 2: Convert to fraction form
    21,299.86/29,394.80 = 12,350.17/x
  3. Step 3: Cross multiply
    21,299.86x = 29,394.80 × 12,350.17
  4. Step 4: Simplify right side
    21,299.86x = 363,030,798.42
  5. Step 5: Solve for x
    x = 363,030,798.42/21,299.86
  6. Step 6: Final answer
    x = 17,043.81

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1.5x scale

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.