Home / 34,215.71-47,215.11-21,468.23

Finding the Fourth Proportional to 34,215.71, 47,215.11 and 21,468.23

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Solution

The fourth proportional to 34,215.71, 47,215.11 and 21,468.23 is: 29,624.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,215.71 : 47,215.11 = 21,468.23 : x
  2. Step 2: Convert to fraction form
    34,215.71/47,215.11 = 21,468.23/x
  3. Step 3: Cross multiply
    34,215.71x = 47,215.11 × 21,468.23
  4. Step 4: Simplify right side
    34,215.71x = 1,013,624,958.99
  5. Step 5: Solve for x
    x = 1,013,624,958.99/34,215.71
  6. Step 6: Final answer
    x = 29,624.55

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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.