Home / 28,165.84-38,872.24-18,090.56

Finding the Fourth Proportional to 28,165.84, 38,872.24 and 18,090.56

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Solution

The fourth proportional to 28,165.84, 38,872.24 and 18,090.56 is: 24,967.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,165.84 : 38,872.24 = 18,090.56 : x
  2. Step 2: Convert to fraction form
    28,165.84/38,872.24 = 18,090.56/x
  3. Step 3: Cross multiply
    28,165.84x = 38,872.24 × 18,090.56
  4. Step 4: Simplify right side
    28,165.84x = 703,220,590.05
  5. Step 5: Solve for x
    x = 703,220,590.05/28,165.84
  6. Step 6: Final answer
    x = 24,967.14

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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.