Home / 20,980.24-31,475.56-9,884.33

Finding the Fourth Proportional to 20,980.24, 31,475.56 and 9,884.33

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Solution

The fourth proportional to 20,980.24, 31,475.56 and 9,884.33 is: 14,828.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,980.24 : 31,475.56 = 9,884.33 : x
  2. Step 2: Convert to fraction form
    20,980.24/31,475.56 = 9,884.33/x
  3. Step 3: Cross multiply
    20,980.24x = 31,475.56 × 9,884.33
  4. Step 4: Simplify right side
    20,980.24x = 311,114,804.25
  5. Step 5: Solve for x
    x = 311,114,804.25/20,980.24
  6. Step 6: Final answer
    x = 14,828.94

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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.