Home / 28,821.16-39,771.30-16,245.64

Finding the Fourth Proportional to 28,821.16, 39,771.30 and 16,245.64

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Solution

The fourth proportional to 28,821.16, 39,771.30 and 16,245.64 is: 22,417.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,821.16 : 39,771.30 = 16,245.64 : x
  2. Step 2: Convert to fraction form
    28,821.16/39,771.30 = 16,245.64/x
  3. Step 3: Cross multiply
    28,821.16x = 39,771.30 × 16,245.64
  4. Step 4: Simplify right side
    28,821.16x = 646,110,222.13
  5. Step 5: Solve for x
    x = 646,110,222.13/28,821.16
  6. Step 6: Final answer
    x = 22,417.91

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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.