Home / 30,927.09-46,386.48-8,742.21

Finding the Fourth Proportional to 30,927.09, 46,386.48 and 8,742.21

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Solution

The fourth proportional to 30,927.09, 46,386.48 and 8,742.21 is: 13,112.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,927.09 : 46,386.48 = 8,742.21 : x
  2. Step 2: Convert to fraction form
    30,927.09/46,386.48 = 8,742.21/x
  3. Step 3: Cross multiply
    30,927.09x = 46,386.48 × 8,742.21
  4. Step 4: Simplify right side
    30,927.09x = 405,520,349.32
  5. Step 5: Solve for x
    x = 405,520,349.32/30,927.09
  6. Step 6: Final answer
    x = 13,112.14

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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.