Home / 20,941.56-31,386.81-9,833.43

Finding the Fourth Proportional to 20,941.56, 31,386.81 and 9,833.43

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Solution

The fourth proportional to 20,941.56, 31,386.81 and 9,833.43 is: 14,738.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,941.56 : 31,386.81 = 9,833.43 : x
  2. Step 2: Convert to fraction form
    20,941.56/31,386.81 = 9,833.43/x
  3. Step 3: Cross multiply
    20,941.56x = 31,386.81 × 9,833.43
  4. Step 4: Simplify right side
    20,941.56x = 308,639,999.06
  5. Step 5: Solve for x
    x = 308,639,999.06/20,941.56
  6. Step 6: Final answer
    x = 14,738.16

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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.