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Finding the Fourth Proportional to 38,113.98, 57,140.44 and 18,113.43

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Solution

The fourth proportional to 38,113.98, 57,140.44 and 18,113.43 is: 27,155.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,113.98 : 57,140.44 = 18,113.43 : x
  2. Step 2: Convert to fraction form
    38,113.98/57,140.44 = 18,113.43/x
  3. Step 3: Cross multiply
    38,113.98x = 57,140.44 × 18,113.43
  4. Step 4: Simplify right side
    38,113.98x = 1,035,009,314.83
  5. Step 5: Solve for x
    x = 1,035,009,314.83/38,113.98
  6. Step 6: Final answer
    x = 27,155.64

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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.