Home / 38,077.86-57,123.48-13,120.56

Finding the Fourth Proportional to 38,077.86, 57,123.48 and 13,120.56

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Solution

The fourth proportional to 38,077.86, 57,123.48 and 13,120.56 is: 19,683.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,077.86 : 57,123.48 = 13,120.56 : x
  2. Step 2: Convert to fraction form
    38,077.86/57,123.48 = 13,120.56/x
  3. Step 3: Cross multiply
    38,077.86x = 57,123.48 × 13,120.56
  4. Step 4: Simplify right side
    38,077.86x = 749,492,046.75
  5. Step 5: Solve for x
    x = 749,492,046.75/38,077.86
  6. Step 6: Final answer
    x = 19,683.15

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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.