Home / 21,605.37-29,813.34-15,943.26

Finding the Fourth Proportional to 21,605.37, 29,813.34 and 15,943.26

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Solution

The fourth proportional to 21,605.37, 29,813.34 and 15,943.26 is: 22,000.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,605.37 : 29,813.34 = 15,943.26 : x
  2. Step 2: Convert to fraction form
    21,605.37/29,813.34 = 15,943.26/x
  3. Step 3: Cross multiply
    21,605.37x = 29,813.34 × 15,943.26
  4. Step 4: Simplify right side
    21,605.37x = 475,321,831.09
  5. Step 5: Solve for x
    x = 475,321,831.09/21,605.37
  6. Step 6: Final answer
    x = 22,000.17

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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.