Home / 30,317.78-41,818.49-18,967.58

Finding the Fourth Proportional to 30,317.78, 41,818.49 and 18,967.58

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Solution

The fourth proportional to 30,317.78, 41,818.49 and 18,967.58 is: 26,162.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,317.78 : 41,818.49 = 18,967.58 : x
  2. Step 2: Convert to fraction form
    30,317.78/41,818.49 = 18,967.58/x
  3. Step 3: Cross multiply
    30,317.78x = 41,818.49 × 18,967.58
  4. Step 4: Simplify right side
    30,317.78x = 793,195,554.55
  5. Step 5: Solve for x
    x = 793,195,554.55/30,317.78
  6. Step 6: Final answer
    x = 26,162.72

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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.