Home / 28,072.02-38,739.15-15,496.50

Finding the Fourth Proportional to 28,072.02, 38,739.15 and 15,496.50

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Solution

The fourth proportional to 28,072.02, 38,739.15 and 15,496.50 is: 21,385.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,072.02 : 38,739.15 = 15,496.50 : x
  2. Step 2: Convert to fraction form
    28,072.02/38,739.15 = 15,496.50/x
  3. Step 3: Cross multiply
    28,072.02x = 38,739.15 × 15,496.50
  4. Step 4: Simplify right side
    28,072.02x = 600,321,237.98
  5. Step 5: Solve for x
    x = 600,321,237.98/28,072.02
  6. Step 6: Final answer
    x = 21,385.04

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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.