Home / 28,945.55-43,421.47-9,219.56

Finding the Fourth Proportional to 28,945.55, 43,421.47 and 9,219.56

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Solution

The fourth proportional to 28,945.55, 43,421.47 and 9,219.56 is: 13,830.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,945.55 : 43,421.47 = 9,219.56 : x
  2. Step 2: Convert to fraction form
    28,945.55/43,421.47 = 9,219.56/x
  3. Step 3: Cross multiply
    28,945.55x = 43,421.47 × 9,219.56
  4. Step 4: Simplify right side
    28,945.55x = 400,326,607.80
  5. Step 5: Solve for x
    x = 400,326,607.80/28,945.55
  6. Step 6: Final answer
    x = 13,830.33

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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.