Home / 28,704.02-39,611.52-15,956.80

Finding the Fourth Proportional to 28,704.02, 39,611.52 and 15,956.80

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Solution

The fourth proportional to 28,704.02, 39,611.52 and 15,956.80 is: 22,020.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,704.02 : 39,611.52 = 15,956.80 : x
  2. Step 2: Convert to fraction form
    28,704.02/39,611.52 = 15,956.80/x
  3. Step 3: Cross multiply
    28,704.02x = 39,611.52 × 15,956.80
  4. Step 4: Simplify right side
    28,704.02x = 632,073,102.34
  5. Step 5: Solve for x
    x = 632,073,102.34/28,704.02
  6. Step 6: Final answer
    x = 22,020.37

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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.