Home / 28,117.89-38,801.53-16,181.65

Finding the Fourth Proportional to 28,117.89, 38,801.53 and 16,181.65

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Solution

The fourth proportional to 28,117.89, 38,801.53 and 16,181.65 is: 22,330.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,117.89 : 38,801.53 = 16,181.65 : x
  2. Step 2: Convert to fraction form
    28,117.89/38,801.53 = 16,181.65/x
  3. Step 3: Cross multiply
    28,117.89x = 38,801.53 × 16,181.65
  4. Step 4: Simplify right side
    28,117.89x = 627,872,777.92
  5. Step 5: Solve for x
    x = 627,872,777.92/28,117.89
  6. Step 6: Final answer
    x = 22,330.01

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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.