Home / 38,129.17-57,230.70-18,421.60

Finding the Fourth Proportional to 38,129.17, 57,230.70 and 18,421.60

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Solution

The fourth proportional to 38,129.17, 57,230.70 and 18,421.60 is: 27,650.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,129.17 : 57,230.70 = 18,421.60 : x
  2. Step 2: Convert to fraction form
    38,129.17/57,230.70 = 18,421.60/x
  3. Step 3: Cross multiply
    38,129.17x = 57,230.70 × 18,421.60
  4. Step 4: Simplify right side
    38,129.17x = 1,054,281,063.12
  5. Step 5: Solve for x
    x = 1,054,281,063.12/38,129.17
  6. Step 6: Final answer
    x = 27,650.25

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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.