Home / 25,858.04-38,786.29-7,139.22

Finding the Fourth Proportional to 25,858.04, 38,786.29 and 7,139.22

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Solution

The fourth proportional to 25,858.04, 38,786.29 and 7,139.22 is: 10,708.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,858.04 : 38,786.29 = 7,139.22 : x
  2. Step 2: Convert to fraction form
    25,858.04/38,786.29 = 7,139.22/x
  3. Step 3: Cross multiply
    25,858.04x = 38,786.29 × 7,139.22
  4. Step 4: Simplify right side
    25,858.04x = 276,903,773.11
  5. Step 5: Solve for x
    x = 276,903,773.11/25,858.04
  6. Step 6: Final answer
    x = 10,708.61

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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.