Home / 25,857.53-38,794.65-12,700.67

Finding the Fourth Proportional to 25,857.53, 38,794.65 and 12,700.67

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Solution

The fourth proportional to 25,857.53, 38,794.65 and 12,700.67 is: 19,055.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,857.53 : 38,794.65 = 12,700.67 : x
  2. Step 2: Convert to fraction form
    25,857.53/38,794.65 = 12,700.67/x
  3. Step 3: Cross multiply
    25,857.53x = 38,794.65 × 12,700.67
  4. Step 4: Simplify right side
    25,857.53x = 492,718,133.14
  5. Step 5: Solve for x
    x = 492,718,133.14/25,857.53
  6. Step 6: Final answer
    x = 19,055.11

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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.