Home / 28,870.75-39,841.64-16,296.31

Finding the Fourth Proportional to 28,870.75, 39,841.64 and 16,296.31

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Solution

The fourth proportional to 28,870.75, 39,841.64 and 16,296.31 is: 22,488.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,870.75 : 39,841.64 = 16,296.31 : x
  2. Step 2: Convert to fraction form
    28,870.75/39,841.64 = 16,296.31/x
  3. Step 3: Cross multiply
    28,870.75x = 39,841.64 × 16,296.31
  4. Step 4: Simplify right side
    28,870.75x = 649,271,716.35
  5. Step 5: Solve for x
    x = 649,271,716.35/28,870.75
  6. Step 6: Final answer
    x = 22,488.91

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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.