Home / 20,365.30-30,533.55-9,277.30

Finding the Fourth Proportional to 20,365.30, 30,533.55 and 9,277.30

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Solution

The fourth proportional to 20,365.30, 30,533.55 and 9,277.30 is: 13,909.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,365.30 : 30,533.55 = 9,277.30 : x
  2. Step 2: Convert to fraction form
    20,365.30/30,533.55 = 9,277.30/x
  3. Step 3: Cross multiply
    20,365.30x = 30,533.55 × 9,277.30
  4. Step 4: Simplify right side
    20,365.30x = 283,268,903.42
  5. Step 5: Solve for x
    x = 283,268,903.42/20,365.30
  6. Step 6: Final answer
    x = 13,909.39

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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.