Home / 28,521.02-39,357.88-15,773.36

Finding the Fourth Proportional to 28,521.02, 39,357.88 and 15,773.36

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Solution

The fourth proportional to 28,521.02, 39,357.88 and 15,773.36 is: 21,766.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,521.02 : 39,357.88 = 15,773.36 : x
  2. Step 2: Convert to fraction form
    28,521.02/39,357.88 = 15,773.36/x
  3. Step 3: Cross multiply
    28,521.02x = 39,357.88 × 15,773.36
  4. Step 4: Simplify right side
    28,521.02x = 620,805,773.85
  5. Step 5: Solve for x
    x = 620,805,773.85/28,521.02
  6. Step 6: Final answer
    x = 21,766.61

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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.