Home / 31,121.16-46,673.55-12,400.44

Finding the Fourth Proportional to 31,121.16, 46,673.55 and 12,400.44

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Solution

The fourth proportional to 31,121.16, 46,673.55 and 12,400.44 is: 18,597.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,121.16 : 46,673.55 = 12,400.44 : x
  2. Step 2: Convert to fraction form
    31,121.16/46,673.55 = 12,400.44/x
  3. Step 3: Cross multiply
    31,121.16x = 46,673.55 × 12,400.44
  4. Step 4: Simplify right side
    31,121.16x = 578,772,556.36
  5. Step 5: Solve for x
    x = 578,772,556.36/31,121.16
  6. Step 6: Final answer
    x = 18,597.40

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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.