Home / 34,718.24-47,915.94-21,287.12

Finding the Fourth Proportional to 34,718.24, 47,915.94 and 21,287.12

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Solution

The fourth proportional to 34,718.24, 47,915.94 and 21,287.12 is: 29,379.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,718.24 : 47,915.94 = 21,287.12 : x
  2. Step 2: Convert to fraction form
    34,718.24/47,915.94 = 21,287.12/x
  3. Step 3: Cross multiply
    34,718.24x = 47,915.94 × 21,287.12
  4. Step 4: Simplify right side
    34,718.24x = 1,019,992,364.69
  5. Step 5: Solve for x
    x = 1,019,992,364.69/34,718.24
  6. Step 6: Final answer
    x = 29,379.15

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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.