Home / 30,322.24-41,841.50-18,678.60

Finding the Fourth Proportional to 30,322.24, 41,841.50 and 18,678.60

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Solution

The fourth proportional to 30,322.24, 41,841.50 and 18,678.60 is: 25,774.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,322.24 : 41,841.50 = 18,678.60 : x
  2. Step 2: Convert to fraction form
    30,322.24/41,841.50 = 18,678.60/x
  3. Step 3: Cross multiply
    30,322.24x = 41,841.50 × 18,678.60
  4. Step 4: Simplify right side
    30,322.24x = 781,540,548.51
  5. Step 5: Solve for x
    x = 781,540,548.51/30,322.24
  6. Step 6: Final answer
    x = 25,774.50

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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.