Home / 19,070.86-28,735.34-15,855.70

Finding the Fourth Proportional to 19,070.86, 28,735.34 and 15,855.70

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Solution

The fourth proportional to 19,070.86, 28,735.34 and 15,855.70 is: 23,890.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,070.86 : 28,735.34 = 15,855.70 : x
  2. Step 2: Convert to fraction form
    19,070.86/28,735.34 = 15,855.70/x
  3. Step 3: Cross multiply
    19,070.86x = 28,735.34 × 15,855.70
  4. Step 4: Simplify right side
    19,070.86x = 455,618,930.44
  5. Step 5: Solve for x
    x = 455,618,930.44/19,070.86
  6. Step 6: Final answer
    x = 23,890.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.