Home / 15,645.98-23,329.40-13,907.32

Finding the Fourth Proportional to 15,645.98, 23,329.40 and 13,907.32

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Solution

The fourth proportional to 15,645.98, 23,329.40 and 13,907.32 is: 20,736.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,645.98 : 23,329.40 = 13,907.32 : x
  2. Step 2: Convert to fraction form
    15,645.98/23,329.40 = 13,907.32/x
  3. Step 3: Cross multiply
    15,645.98x = 23,329.40 × 13,907.32
  4. Step 4: Simplify right side
    15,645.98x = 324,449,407.65
  5. Step 5: Solve for x
    x = 324,449,407.65/15,645.98
  6. Step 6: Final answer
    x = 20,736.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.