Home / 20,739.12-28,602.36-14,022.96

Finding the Fourth Proportional to 20,739.12, 28,602.36 and 14,022.96

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Solution

The fourth proportional to 20,739.12, 28,602.36 and 14,022.96 is: 19,339.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,739.12 : 28,602.36 = 14,022.96 : x
  2. Step 2: Convert to fraction form
    20,739.12/28,602.36 = 14,022.96/x
  3. Step 3: Cross multiply
    20,739.12x = 28,602.36 × 14,022.96
  4. Step 4: Simplify right side
    20,739.12x = 401,089,750.19
  5. Step 5: Solve for x
    x = 401,089,750.19/20,739.12
  6. Step 6: Final answer
    x = 19,339.77

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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.