Home / 20,336.13-28,074.60-13,176.27

Finding the Fourth Proportional to 20,336.13, 28,074.60 and 13,176.27

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Solution

The fourth proportional to 20,336.13, 28,074.60 and 13,176.27 is: 18,190.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,336.13 : 28,074.60 = 13,176.27 : x
  2. Step 2: Convert to fraction form
    20,336.13/28,074.60 = 13,176.27/x
  3. Step 3: Cross multiply
    20,336.13x = 28,074.60 × 13,176.27
  4. Step 4: Simplify right side
    20,336.13x = 369,918,509.74
  5. Step 5: Solve for x
    x = 369,918,509.74/20,336.13
  6. Step 6: Final answer
    x = 18,190.21

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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.