Home / 28,181.84-38,892.10-15,606.58

Finding the Fourth Proportional to 28,181.84, 38,892.10 and 15,606.58

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Solution

The fourth proportional to 28,181.84, 38,892.10 and 15,606.58 is: 21,537.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,181.84 : 38,892.10 = 15,606.58 : x
  2. Step 2: Convert to fraction form
    28,181.84/38,892.10 = 15,606.58/x
  3. Step 3: Cross multiply
    28,181.84x = 38,892.10 × 15,606.58
  4. Step 4: Simplify right side
    28,181.84x = 606,972,670.02
  5. Step 5: Solve for x
    x = 606,972,670.02/28,181.84
  6. Step 6: Final answer
    x = 21,537.72

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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.