Home / 25,860.42-38,790.86-7,141.50

Finding the Fourth Proportional to 25,860.42, 38,790.86 and 7,141.50

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Solution

The fourth proportional to 25,860.42, 38,790.86 and 7,141.50 is: 10,712.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,860.42 : 38,790.86 = 7,141.50 : x
  2. Step 2: Convert to fraction form
    25,860.42/38,790.86 = 7,141.50/x
  3. Step 3: Cross multiply
    25,860.42x = 38,790.86 × 7,141.50
  4. Step 4: Simplify right side
    25,860.42x = 277,024,890.98
  5. Step 5: Solve for x
    x = 277,024,890.98/25,860.42
  6. Step 6: Final answer
    x = 10,712.31

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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.