Home / 28,032-38,684.64-18,113.28

Finding the Fourth Proportional to 28,032, 38,684.64 and 18,113.28

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Solution

The fourth proportional to 28,032, 38,684.64 and 18,113.28 is: 24,996.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,032 : 38,684.64 = 18,113.28 : x
  2. Step 2: Convert to fraction form
    28,032/38,684.64 = 18,113.28/x
  3. Step 3: Cross multiply
    28,032x = 38,684.64 × 18,113.28
  4. Step 4: Simplify right side
    28,032x = 700,705,716.02
  5. Step 5: Solve for x
    x = 700,705,716.02/28,032
  6. Step 6: Final answer
    x = 24,996.64

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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.