Home / 25,678.09-35,429.29-15,065.67

Finding the Fourth Proportional to 25,678.09, 35,429.29 and 15,065.67

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Solution

The fourth proportional to 25,678.09, 35,429.29 and 15,065.67 is: 20,786.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,678.09 : 35,429.29 = 15,065.67 : x
  2. Step 2: Convert to fraction form
    25,678.09/35,429.29 = 15,065.67/x
  3. Step 3: Cross multiply
    25,678.09x = 35,429.29 × 15,065.67
  4. Step 4: Simplify right side
    25,678.09x = 533,765,965.84
  5. Step 5: Solve for x
    x = 533,765,965.84/25,678.09
  6. Step 6: Final answer
    x = 20,786.83

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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.