Home / 31,278.36-46,918.14-10,218.46

Finding the Fourth Proportional to 31,278.36, 46,918.14 and 10,218.46

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Solution

The fourth proportional to 31,278.36, 46,918.14 and 10,218.46 is: 15,327.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,278.36 : 46,918.14 = 10,218.46 : x
  2. Step 2: Convert to fraction form
    31,278.36/46,918.14 = 10,218.46/x
  3. Step 3: Cross multiply
    31,278.36x = 46,918.14 × 10,218.46
  4. Step 4: Simplify right side
    31,278.36x = 479,431,136.86
  5. Step 5: Solve for x
    x = 479,431,136.86/31,278.36
  6. Step 6: Final answer
    x = 15,327.89

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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.