Home / 21,263.06-29,342.30-11,831.42

Finding the Fourth Proportional to 21,263.06, 29,342.30 and 11,831.42

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Solution

The fourth proportional to 21,263.06, 29,342.30 and 11,831.42 is: 16,326.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,263.06 : 29,342.30 = 11,831.42 : x
  2. Step 2: Convert to fraction form
    21,263.06/29,342.30 = 11,831.42/x
  3. Step 3: Cross multiply
    21,263.06x = 29,342.30 × 11,831.42
  4. Step 4: Simplify right side
    21,263.06x = 347,161,075.07
  5. Step 5: Solve for x
    x = 347,161,075.07/21,263.06
  6. Step 6: Final answer
    x = 16,326.96

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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.