Home / 30,928.45-46,395.18-8,742.01

Finding the Fourth Proportional to 30,928.45, 46,395.18 and 8,742.01

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Solution

The fourth proportional to 30,928.45, 46,395.18 and 8,742.01 is: 13,113.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,928.45 : 46,395.18 = 8,742.01 : x
  2. Step 2: Convert to fraction form
    30,928.45/46,395.18 = 8,742.01/x
  3. Step 3: Cross multiply
    30,928.45x = 46,395.18 × 8,742.01
  4. Step 4: Simplify right side
    30,928.45x = 405,587,127.51
  5. Step 5: Solve for x
    x = 405,587,127.51/30,928.45
  6. Step 6: Final answer
    x = 13,113.72

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.