Home / 25,785.81-38,680.70-10,994.81

Finding the Fourth Proportional to 25,785.81, 38,680.70 and 10,994.81

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Solution

The fourth proportional to 25,785.81, 38,680.70 and 10,994.81 is: 16,493.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,785.81 : 38,680.70 = 10,994.81 : x
  2. Step 2: Convert to fraction form
    25,785.81/38,680.70 = 10,994.81/x
  3. Step 3: Cross multiply
    25,785.81x = 38,680.70 × 10,994.81
  4. Step 4: Simplify right side
    25,785.81x = 425,286,698.79
  5. Step 5: Solve for x
    x = 425,286,698.79/25,785.81
  6. Step 6: Final answer
    x = 16,493.05

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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.