Home / 46,127.96-69,138.16-21,170.64

Finding the Fourth Proportional to 46,127.96, 69,138.16 and 21,170.64

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Solution

The fourth proportional to 46,127.96, 69,138.16 and 21,170.64 is: 31,731.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    46,127.96 : 69,138.16 = 21,170.64 : x
  2. Step 2: Convert to fraction form
    46,127.96/69,138.16 = 21,170.64/x
  3. Step 3: Cross multiply
    46,127.96x = 69,138.16 × 21,170.64
  4. Step 4: Simplify right side
    46,127.96x = 1,463,699,095.62
  5. Step 5: Solve for x
    x = 1,463,699,095.62/46,127.96
  6. Step 6: Final answer
    x = 31,731.28

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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.