Home / 30,310.71-41,846.13-20,256.18

Finding the Fourth Proportional to 30,310.71, 41,846.13 and 20,256.18

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Solution

The fourth proportional to 30,310.71, 41,846.13 and 20,256.18 is: 27,965.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,310.71 : 41,846.13 = 20,256.18 : x
  2. Step 2: Convert to fraction form
    30,310.71/41,846.13 = 20,256.18/x
  3. Step 3: Cross multiply
    30,310.71x = 41,846.13 × 20,256.18
  4. Step 4: Simplify right side
    30,310.71x = 847,642,741.58
  5. Step 5: Solve for x
    x = 847,642,741.58/30,310.71
  6. Step 6: Final answer
    x = 27,965.12

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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.