Home / 28,162.56-38,851.21-16,218.98

Finding the Fourth Proportional to 28,162.56, 38,851.21 and 16,218.98

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Solution

The fourth proportional to 28,162.56, 38,851.21 and 16,218.98 is: 22,374.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,162.56 : 38,851.21 = 16,218.98 : x
  2. Step 2: Convert to fraction form
    28,162.56/38,851.21 = 16,218.98/x
  3. Step 3: Cross multiply
    28,162.56x = 38,851.21 × 16,218.98
  4. Step 4: Simplify right side
    28,162.56x = 630,126,969.68
  5. Step 5: Solve for x
    x = 630,126,969.68/28,162.56
  6. Step 6: Final answer
    x = 22,374.63

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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.