Home / 28,704.85-39,610.05-15,956.63

Finding the Fourth Proportional to 28,704.85, 39,610.05 and 15,956.63

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Solution

The fourth proportional to 28,704.85, 39,610.05 and 15,956.63 is: 22,018.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,704.85 : 39,610.05 = 15,956.63 : x
  2. Step 2: Convert to fraction form
    28,704.85/39,610.05 = 15,956.63/x
  3. Step 3: Cross multiply
    28,704.85x = 39,610.05 × 15,956.63
  4. Step 4: Simplify right side
    28,704.85x = 632,042,802.78
  5. Step 5: Solve for x
    x = 632,042,802.78/28,704.85
  6. Step 6: Final answer
    x = 22,018.68

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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.