Home / 26,999.28-40,497.12-12,969.36

Finding the Fourth Proportional to 26,999.28, 40,497.12 and 12,969.36

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Solution

The fourth proportional to 26,999.28, 40,497.12 and 12,969.36 is: 19,453.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,999.28 : 40,497.12 = 12,969.36 : x
  2. Step 2: Convert to fraction form
    26,999.28/40,497.12 = 12,969.36/x
  3. Step 3: Cross multiply
    26,999.28x = 40,497.12 × 12,969.36
  4. Step 4: Simplify right side
    26,999.28x = 525,221,728.24
  5. Step 5: Solve for x
    x = 525,221,728.24/26,999.28
  6. Step 6: Final answer
    x = 19,453.18

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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.