Home / 28,290.30-39,040.54-15,541.44

Finding the Fourth Proportional to 28,290.30, 39,040.54 and 15,541.44

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Solution

The fourth proportional to 28,290.30, 39,040.54 and 15,541.44 is: 21,447.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,290.30 : 39,040.54 = 15,541.44 : x
  2. Step 2: Convert to fraction form
    28,290.30/39,040.54 = 15,541.44/x
  3. Step 3: Cross multiply
    28,290.30x = 39,040.54 × 15,541.44
  4. Step 4: Simplify right side
    28,290.30x = 606,746,209.98
  5. Step 5: Solve for x
    x = 606,746,209.98/28,290.30
  6. Step 6: Final answer
    x = 21,447.15

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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.