Home / 25,860.08-38,790.36-20,698.76

Finding the Fourth Proportional to 25,860.08, 38,790.36 and 20,698.76

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Solution

The fourth proportional to 25,860.08, 38,790.36 and 20,698.76 is: 31,048.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,860.08 : 38,790.36 = 20,698.76 : x
  2. Step 2: Convert to fraction form
    25,860.08/38,790.36 = 20,698.76/x
  3. Step 3: Cross multiply
    25,860.08x = 38,790.36 × 20,698.76
  4. Step 4: Simplify right side
    25,860.08x = 802,912,351.95
  5. Step 5: Solve for x
    x = 802,912,351.95/25,860.08
  6. Step 6: Final answer
    x = 31,048.33

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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.