Home / 31,254.36-46,881.40-12,786.36

Finding the Fourth Proportional to 31,254.36, 46,881.40 and 12,786.36

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Solution

The fourth proportional to 31,254.36, 46,881.40 and 12,786.36 is: 19,179.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,254.36 : 46,881.40 = 12,786.36 : x
  2. Step 2: Convert to fraction form
    31,254.36/46,881.40 = 12,786.36/x
  3. Step 3: Cross multiply
    31,254.36x = 46,881.40 × 12,786.36
  4. Step 4: Simplify right side
    31,254.36x = 599,442,457.70
  5. Step 5: Solve for x
    x = 599,442,457.70/31,254.36
  6. Step 6: Final answer
    x = 19,179.48

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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.