Home / 18,822.96-28,254.87-14,156.28

Finding the Fourth Proportional to 18,822.96, 28,254.87 and 14,156.28

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Solution

The fourth proportional to 18,822.96, 28,254.87 and 14,156.28 is: 21,249.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,822.96 : 28,254.87 = 14,156.28 : x
  2. Step 2: Convert to fraction form
    18,822.96/28,254.87 = 14,156.28/x
  3. Step 3: Cross multiply
    18,822.96x = 28,254.87 × 14,156.28
  4. Step 4: Simplify right side
    18,822.96x = 399,983,851.08
  5. Step 5: Solve for x
    x = 399,983,851.08/18,822.96
  6. Step 6: Final answer
    x = 21,249.78

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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.