Home / 30,359.36-41,883.84-18,418.32

Finding the Fourth Proportional to 30,359.36, 41,883.84 and 18,418.32

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Solution

The fourth proportional to 30,359.36, 41,883.84 and 18,418.32 is: 25,409.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,359.36 : 41,883.84 = 18,418.32 : x
  2. Step 2: Convert to fraction form
    30,359.36/41,883.84 = 18,418.32/x
  3. Step 3: Cross multiply
    30,359.36x = 41,883.84 × 18,418.32
  4. Step 4: Simplify right side
    30,359.36x = 771,429,967.95
  5. Step 5: Solve for x
    x = 771,429,967.95/30,359.36
  6. Step 6: Final answer
    x = 25,409.95

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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.