Home / 28,635.84-39,517.80-15,889.26

Finding the Fourth Proportional to 28,635.84, 39,517.80 and 15,889.26

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Solution

The fourth proportional to 28,635.84, 39,517.80 and 15,889.26 is: 21,927.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,635.84 : 39,517.80 = 15,889.26 : x
  2. Step 2: Convert to fraction form
    28,635.84/39,517.80 = 15,889.26/x
  3. Step 3: Cross multiply
    28,635.84x = 39,517.80 × 15,889.26
  4. Step 4: Simplify right side
    28,635.84x = 627,908,598.83
  5. Step 5: Solve for x
    x = 627,908,598.83/28,635.84
  6. Step 6: Final answer
    x = 21,927.37

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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.