Home / 25,485.39-38,189.07-10,686.21

Finding the Fourth Proportional to 25,485.39, 38,189.07 and 10,686.21

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Solution

The fourth proportional to 25,485.39, 38,189.07 and 10,686.21 is: 16,012.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,485.39 : 38,189.07 = 10,686.21 : x
  2. Step 2: Convert to fraction form
    25,485.39/38,189.07 = 10,686.21/x
  3. Step 3: Cross multiply
    25,485.39x = 38,189.07 × 10,686.21
  4. Step 4: Simplify right side
    25,485.39x = 408,096,421.72
  5. Step 5: Solve for x
    x = 408,096,421.72/25,485.39
  6. Step 6: Final answer
    x = 16,012.96

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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.