Home / 20,325.36-30,448.60-14,978.84

Finding the Fourth Proportional to 20,325.36, 30,448.60 and 14,978.84

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Solution

The fourth proportional to 20,325.36, 30,448.60 and 14,978.84 is: 22,439.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,325.36 : 30,448.60 = 14,978.84 : x
  2. Step 2: Convert to fraction form
    20,325.36/30,448.60 = 14,978.84/x
  3. Step 3: Cross multiply
    20,325.36x = 30,448.60 × 14,978.84
  4. Step 4: Simplify right side
    20,325.36x = 456,084,707.62
  5. Step 5: Solve for x
    x = 456,084,707.62/20,325.36
  6. Step 6: Final answer
    x = 22,439.19

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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.