Home / 28,437.75-39,244.10-15,862.50

Finding the Fourth Proportional to 28,437.75, 39,244.10 and 15,862.50

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Solution

The fourth proportional to 28,437.75, 39,244.10 and 15,862.50 is: 21,890.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,437.75 : 39,244.10 = 15,862.50 : x
  2. Step 2: Convert to fraction form
    28,437.75/39,244.10 = 15,862.50/x
  3. Step 3: Cross multiply
    28,437.75x = 39,244.10 × 15,862.50
  4. Step 4: Simplify right side
    28,437.75x = 622,509,456.94
  5. Step 5: Solve for x
    x = 622,509,456.94/28,437.75
  6. Step 6: Final answer
    x = 21,890.25

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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.