Home / 28,587.41-42,920.39-14,556.86

Finding the Fourth Proportional to 28,587.41, 42,920.39 and 14,556.86

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Solution

The fourth proportional to 28,587.41, 42,920.39 and 14,556.86 is: 21,855.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,587.41 : 42,920.39 = 14,556.86 : x
  2. Step 2: Convert to fraction form
    28,587.41/42,920.39 = 14,556.86/x
  3. Step 3: Cross multiply
    28,587.41x = 42,920.39 × 14,556.86
  4. Step 4: Simplify right side
    28,587.41x = 624,786,091.12
  5. Step 5: Solve for x
    x = 624,786,091.12/28,587.41
  6. Step 6: Final answer
    x = 21,855.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.