Home / 28,858.42-39,825.24-15,937.65

Finding the Fourth Proportional to 28,858.42, 39,825.24 and 15,937.65

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Solution

The fourth proportional to 28,858.42, 39,825.24 and 15,937.65 is: 21,994.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,858.42 : 39,825.24 = 15,937.65 : x
  2. Step 2: Convert to fraction form
    28,858.42/39,825.24 = 15,937.65/x
  3. Step 3: Cross multiply
    28,858.42x = 39,825.24 × 15,937.65
  4. Step 4: Simplify right side
    28,858.42x = 634,720,656.60
  5. Step 5: Solve for x
    x = 634,720,656.60/28,858.42
  6. Step 6: Final answer
    x = 21,994.30

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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.