Home / 28,886.88-43,336.80-9,166.08

Finding the Fourth Proportional to 28,886.88, 43,336.80 and 9,166.08

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Solution

The fourth proportional to 28,886.88, 43,336.80 and 9,166.08 is: 13,751.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,886.88 : 43,336.80 = 9,166.08 : x
  2. Step 2: Convert to fraction form
    28,886.88/43,336.80 = 9,166.08/x
  3. Step 3: Cross multiply
    28,886.88x = 43,336.80 × 9,166.08
  4. Step 4: Simplify right side
    28,886.88x = 397,228,575.74
  5. Step 5: Solve for x
    x = 397,228,575.74/28,886.88
  6. Step 6: Final answer
    x = 13,751.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.