Home / 51,570.88-71,173.68-28,915.92

Finding the Fourth Proportional to 51,570.88, 71,173.68 and 28,915.92

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Solution

The fourth proportional to 51,570.88, 71,173.68 and 28,915.92 is: 39,907.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,570.88 : 71,173.68 = 28,915.92 : x
  2. Step 2: Convert to fraction form
    51,570.88/71,173.68 = 28,915.92/x
  3. Step 3: Cross multiply
    51,570.88x = 71,173.68 × 28,915.92
  4. Step 4: Simplify right side
    51,570.88x = 2,058,052,436.99
  5. Step 5: Solve for x
    x = 2,058,052,436.99/51,570.88
  6. Step 6: Final answer
    x = 39,907.26

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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.