Home / 38,933.46-58,390.47-12,645.72

Finding the Fourth Proportional to 38,933.46, 58,390.47 and 12,645.72

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Solution

The fourth proportional to 38,933.46, 58,390.47 and 12,645.72 is: 18,965.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,933.46 : 58,390.47 = 12,645.72 : x
  2. Step 2: Convert to fraction form
    38,933.46/58,390.47 = 12,645.72/x
  3. Step 3: Cross multiply
    38,933.46x = 58,390.47 × 12,645.72
  4. Step 4: Simplify right side
    38,933.46x = 738,389,534.29
  5. Step 5: Solve for x
    x = 738,389,534.29/38,933.46
  6. Step 6: Final answer
    x = 18,965.42

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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.