Home / 28,161.55-38,858.60-16,222.55

Finding the Fourth Proportional to 28,161.55, 38,858.60 and 16,222.55

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Solution

The fourth proportional to 28,161.55, 38,858.60 and 16,222.55 is: 22,384.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,161.55 : 38,858.60 = 16,222.55 : x
  2. Step 2: Convert to fraction form
    28,161.55/38,858.60 = 16,222.55/x
  3. Step 3: Cross multiply
    28,161.55x = 38,858.60 × 16,222.55
  4. Step 4: Simplify right side
    28,161.55x = 630,385,500.32
  5. Step 5: Solve for x
    x = 630,385,500.32/28,161.55
  6. Step 6: Final answer
    x = 22,384.62

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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.