Home / 38,123.65-57,219.90-19,416.70

Finding the Fourth Proportional to 38,123.65, 57,219.90 and 19,416.70

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Solution

The fourth proportional to 38,123.65, 57,219.90 and 19,416.70 is: 29,142.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,123.65 : 57,219.90 = 19,416.70 : x
  2. Step 2: Convert to fraction form
    38,123.65/57,219.90 = 19,416.70/x
  3. Step 3: Cross multiply
    38,123.65x = 57,219.90 × 19,416.70
  4. Step 4: Simplify right side
    38,123.65x = 1,111,021,632.33
  5. Step 5: Solve for x
    x = 1,111,021,632.33/38,123.65
  6. Step 6: Final answer
    x = 29,142.58

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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.