Home / 28,061.02-38,723.97-15,485.50

Finding the Fourth Proportional to 28,061.02, 38,723.97 and 15,485.50

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Solution

The fourth proportional to 28,061.02, 38,723.97 and 15,485.50 is: 21,369.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,061.02 : 38,723.97 = 15,485.50 : x
  2. Step 2: Convert to fraction form
    28,061.02/38,723.97 = 15,485.50/x
  3. Step 3: Cross multiply
    28,061.02x = 38,723.97 × 15,485.50
  4. Step 4: Simplify right side
    28,061.02x = 599,660,037.44
  5. Step 5: Solve for x
    x = 599,660,037.44/28,061.02
  6. Step 6: Final answer
    x = 21,369.86

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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.