Home / 30,361.10-41,891.18-18,424.16

Finding the Fourth Proportional to 30,361.10, 41,891.18 and 18,424.16

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Solution

The fourth proportional to 30,361.10, 41,891.18 and 18,424.16 is: 25,421.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,361.10 : 41,891.18 = 18,424.16 : x
  2. Step 2: Convert to fraction form
    30,361.10/41,891.18 = 18,424.16/x
  3. Step 3: Cross multiply
    30,361.10x = 41,891.18 × 18,424.16
  4. Step 4: Simplify right side
    30,361.10x = 771,809,802.91
  5. Step 5: Solve for x
    x = 771,809,802.91/30,361.10
  6. Step 6: Final answer
    x = 25,421.01

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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.