Home / 34,343.91-47,370.24-21,429.69

Finding the Fourth Proportional to 34,343.91, 47,370.24 and 21,429.69

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Solution

The fourth proportional to 34,343.91, 47,370.24 and 21,429.69 is: 29,557.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,343.91 : 47,370.24 = 21,429.69 : x
  2. Step 2: Convert to fraction form
    34,343.91/47,370.24 = 21,429.69/x
  3. Step 3: Cross multiply
    34,343.91x = 47,370.24 × 21,429.69
  4. Step 4: Simplify right side
    34,343.91x = 1,015,129,214.43
  5. Step 5: Solve for x
    x = 1,015,129,214.43/34,343.91
  6. Step 6: Final answer
    x = 29,557.77

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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.