Home / 38,790.87-58,186.35-12,499.53

Finding the Fourth Proportional to 38,790.87, 58,186.35 and 12,499.53

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Solution

The fourth proportional to 38,790.87, 58,186.35 and 12,499.53 is: 18,749.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,790.87 : 58,186.35 = 12,499.53 : x
  2. Step 2: Convert to fraction form
    38,790.87/58,186.35 = 12,499.53/x
  3. Step 3: Cross multiply
    38,790.87x = 58,186.35 × 12,499.53
  4. Step 4: Simplify right side
    38,790.87x = 727,302,027.42
  5. Step 5: Solve for x
    x = 727,302,027.42/38,790.87
  6. Step 6: Final answer
    x = 18,749.31

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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.