Home / 34,738.31-47,939.75-21,316.98

Finding the Fourth Proportional to 34,738.31, 47,939.75 and 21,316.98

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Solution

The fourth proportional to 34,738.31, 47,939.75 and 21,316.98 is: 29,417.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,738.31 : 47,939.75 = 21,316.98 : x
  2. Step 2: Convert to fraction form
    34,738.31/47,939.75 = 21,316.98/x
  3. Step 3: Cross multiply
    34,738.31x = 47,939.75 × 21,316.98
  4. Step 4: Simplify right side
    34,738.31x = 1,021,930,691.96
  5. Step 5: Solve for x
    x = 1,021,930,691.96/34,738.31
  6. Step 6: Final answer
    x = 29,417.97

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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.