Home / 28,477.21-39,317.03-25,487.86

Finding the Fourth Proportional to 28,477.21, 39,317.03 and 25,487.86

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Solution

The fourth proportional to 28,477.21, 39,317.03 and 25,487.86 is: 35,189.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,477.21 : 39,317.03 = 25,487.86 : x
  2. Step 2: Convert to fraction form
    28,477.21/39,317.03 = 25,487.86/x
  3. Step 3: Cross multiply
    28,477.21x = 39,317.03 × 25,487.86
  4. Step 4: Simplify right side
    28,477.21x = 1,002,106,956.26
  5. Step 5: Solve for x
    x = 1,002,106,956.26/28,477.21
  6. Step 6: Final answer
    x = 35,189.79

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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.