Home / 30,751.12-46,022.10-19,665.40

Finding the Fourth Proportional to 30,751.12, 46,022.10 and 19,665.40

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Solution

The fourth proportional to 30,751.12, 46,022.10 and 19,665.40 is: 29,431.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,751.12 : 46,022.10 = 19,665.40 : x
  2. Step 2: Convert to fraction form
    30,751.12/46,022.10 = 19,665.40/x
  3. Step 3: Cross multiply
    30,751.12x = 46,022.10 × 19,665.40
  4. Step 4: Simplify right side
    30,751.12x = 905,043,005.34
  5. Step 5: Solve for x
    x = 905,043,005.34/30,751.12
  6. Step 6: Final answer
    x = 29,431.22

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1.5x scale

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.