Home / 25,187.85-34,758.74-13,856.67

Finding the Fourth Proportional to 25,187.85, 34,758.74 and 13,856.67

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Solution

The fourth proportional to 25,187.85, 34,758.74 and 13,856.67 is: 19,121.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,187.85 : 34,758.74 = 13,856.67 : x
  2. Step 2: Convert to fraction form
    25,187.85/34,758.74 = 13,856.67/x
  3. Step 3: Cross multiply
    25,187.85x = 34,758.74 × 13,856.67
  4. Step 4: Simplify right side
    25,187.85x = 481,640,320.51
  5. Step 5: Solve for x
    x = 481,640,320.51/25,187.85
  6. Step 6: Final answer
    x = 19,121.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.