Home / 28,860.32-43,176.60-21,860.52

Finding the Fourth Proportional to 28,860.32, 43,176.60 and 21,860.52

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Solution

The fourth proportional to 28,860.32, 43,176.60 and 21,860.52 is: 32,704.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,860.32 : 43,176.60 = 21,860.52 : x
  2. Step 2: Convert to fraction form
    28,860.32/43,176.60 = 21,860.52/x
  3. Step 3: Cross multiply
    28,860.32x = 43,176.60 × 21,860.52
  4. Step 4: Simplify right side
    28,860.32x = 943,862,927.83
  5. Step 5: Solve for x
    x = 943,862,927.83/28,860.32
  6. Step 6: Final answer
    x = 32,704.52

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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.