Home / 28,570.76-39,425.46-15,993.80

Finding the Fourth Proportional to 28,570.76, 39,425.46 and 15,993.80

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Solution

The fourth proportional to 28,570.76, 39,425.46 and 15,993.80 is: 22,070.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,570.76 : 39,425.46 = 15,993.80 : x
  2. Step 2: Convert to fraction form
    28,570.76/39,425.46 = 15,993.80/x
  3. Step 3: Cross multiply
    28,570.76x = 39,425.46 × 15,993.80
  4. Step 4: Simplify right side
    28,570.76x = 630,562,922.15
  5. Step 5: Solve for x
    x = 630,562,922.15/28,570.76
  6. Step 6: Final answer
    x = 22,070.22

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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.