Home / 18,823.96-28,256.37-14,157.28

Finding the Fourth Proportional to 18,823.96, 28,256.37 and 14,157.28

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Solution

The fourth proportional to 18,823.96, 28,256.37 and 14,157.28 is: 21,251.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,823.96 : 28,256.37 = 14,157.28 : x
  2. Step 2: Convert to fraction form
    18,823.96/28,256.37 = 14,157.28/x
  3. Step 3: Cross multiply
    18,823.96x = 28,256.37 × 14,157.28
  4. Step 4: Simplify right side
    18,823.96x = 400,033,341.87
  5. Step 5: Solve for x
    x = 400,033,341.87/18,823.96
  6. Step 6: Final answer
    x = 21,251.29

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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.