Home / 20,836.37-28,749.75-12,341.18

Finding the Fourth Proportional to 20,836.37, 28,749.75 and 12,341.18

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Solution

The fourth proportional to 20,836.37, 28,749.75 and 12,341.18 is: 17,028.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,836.37 : 28,749.75 = 12,341.18 : x
  2. Step 2: Convert to fraction form
    20,836.37/28,749.75 = 12,341.18/x
  3. Step 3: Cross multiply
    20,836.37x = 28,749.75 × 12,341.18
  4. Step 4: Simplify right side
    20,836.37x = 354,805,839.71
  5. Step 5: Solve for x
    x = 354,805,839.71/20,836.37
  6. Step 6: Final answer
    x = 17,028.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.