Home / 20,941.80-31,409.44-13,598.32

Finding the Fourth Proportional to 20,941.80, 31,409.44 and 13,598.32

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Solution

The fourth proportional to 20,941.80, 31,409.44 and 13,598.32 is: 20,395.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,941.80 : 31,409.44 = 13,598.32 : x
  2. Step 2: Convert to fraction form
    20,941.80/31,409.44 = 13,598.32/x
  3. Step 3: Cross multiply
    20,941.80x = 31,409.44 × 13,598.32
  4. Step 4: Simplify right side
    20,941.80x = 427,115,616.14
  5. Step 5: Solve for x
    x = 427,115,616.14/20,941.80
  6. Step 6: Final answer
    x = 20,395.36

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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.