Home / 28,585.88-39,449.72-16,647.30

Finding the Fourth Proportional to 28,585.88, 39,449.72 and 16,647.30

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Solution

The fourth proportional to 28,585.88, 39,449.72 and 16,647.30 is: 22,973.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,585.88 : 39,449.72 = 16,647.30 : x
  2. Step 2: Convert to fraction form
    28,585.88/39,449.72 = 16,647.30/x
  3. Step 3: Cross multiply
    28,585.88x = 39,449.72 × 16,647.30
  4. Step 4: Simplify right side
    28,585.88x = 656,731,323.76
  5. Step 5: Solve for x
    x = 656,731,323.76/28,585.88
  6. Step 6: Final answer
    x = 22,973.98

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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.