Home / 37,140.72-51,257.70-21,222.08

Finding the Fourth Proportional to 37,140.72, 51,257.70 and 21,222.08

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Solution

The fourth proportional to 37,140.72, 51,257.70 and 21,222.08 is: 29,288.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,140.72 : 51,257.70 = 21,222.08 : x
  2. Step 2: Convert to fraction form
    37,140.72/51,257.70 = 21,222.08/x
  3. Step 3: Cross multiply
    37,140.72x = 51,257.70 × 21,222.08
  4. Step 4: Simplify right side
    37,140.72x = 1,087,794,903.91
  5. Step 5: Solve for x
    x = 1,087,794,903.91/37,140.72
  6. Step 6: Final answer
    x = 29,288.47

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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.