Home / 28,969.44-39,977.64-16,393.92

Finding the Fourth Proportional to 28,969.44, 39,977.64 and 16,393.92

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Solution

The fourth proportional to 28,969.44, 39,977.64 and 16,393.92 is: 22,623.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,969.44 : 39,977.64 = 16,393.92 : x
  2. Step 2: Convert to fraction form
    28,969.44/39,977.64 = 16,393.92/x
  3. Step 3: Cross multiply
    28,969.44x = 39,977.64 × 16,393.92
  4. Step 4: Simplify right side
    28,969.44x = 655,390,231.95
  5. Step 5: Solve for x
    x = 655,390,231.95/28,969.44
  6. Step 6: Final answer
    x = 22,623.50

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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.