Home / 30,921.64-46,389.18-10,144.36

Finding the Fourth Proportional to 30,921.64, 46,389.18 and 10,144.36

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Solution

The fourth proportional to 30,921.64, 46,389.18 and 10,144.36 is: 15,218.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,921.64 : 46,389.18 = 10,144.36 : x
  2. Step 2: Convert to fraction form
    30,921.64/46,389.18 = 10,144.36/x
  3. Step 3: Cross multiply
    30,921.64x = 46,389.18 × 10,144.36
  4. Step 4: Simplify right side
    30,921.64x = 470,588,542.02
  5. Step 5: Solve for x
    x = 470,588,542.02/30,921.64
  6. Step 6: Final answer
    x = 15,218.74

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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.