Home / 20,895.21-31,341.42-9,804.33

Finding the Fourth Proportional to 20,895.21, 31,341.42 and 9,804.33

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Solution

The fourth proportional to 20,895.21, 31,341.42 and 9,804.33 is: 14,705.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,895.21 : 31,341.42 = 9,804.33 : x
  2. Step 2: Convert to fraction form
    20,895.21/31,341.42 = 9,804.33/x
  3. Step 3: Cross multiply
    20,895.21x = 31,341.42 × 9,804.33
  4. Step 4: Simplify right side
    20,895.21x = 307,281,624.35
  5. Step 5: Solve for x
    x = 307,281,624.35/20,895.21
  6. Step 6: Final answer
    x = 14,705.84

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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.