Home / 28,979.36-43,483.62-21,598.64

Finding the Fourth Proportional to 28,979.36, 43,483.62 and 21,598.64

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Solution

The fourth proportional to 28,979.36, 43,483.62 and 21,598.64 is: 32,408.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,979.36 : 43,483.62 = 21,598.64 : x
  2. Step 2: Convert to fraction form
    28,979.36/43,483.62 = 21,598.64/x
  3. Step 3: Cross multiply
    28,979.36x = 43,483.62 × 21,598.64
  4. Step 4: Simplify right side
    28,979.36x = 939,187,054.28
  5. Step 5: Solve for x
    x = 939,187,054.28/28,979.36
  6. Step 6: Final answer
    x = 32,408.83

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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.