Home / 38,768.94-58,116.46-12,455.21

Finding the Fourth Proportional to 38,768.94, 58,116.46 and 12,455.21

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Solution

The fourth proportional to 38,768.94, 58,116.46 and 12,455.21 is: 18,670.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,768.94 : 58,116.46 = 12,455.21 : x
  2. Step 2: Convert to fraction form
    38,768.94/58,116.46 = 12,455.21/x
  3. Step 3: Cross multiply
    38,768.94x = 58,116.46 × 12,455.21
  4. Step 4: Simplify right side
    38,768.94x = 723,852,713.76
  5. Step 5: Solve for x
    x = 723,852,713.76/38,768.94
  6. Step 6: Final answer
    x = 18,670.94

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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.