Home / 31,139.02-46,679.37-11,412.28

Finding the Fourth Proportional to 31,139.02, 46,679.37 and 11,412.28

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Solution

The fourth proportional to 31,139.02, 46,679.37 and 11,412.28 is: 17,107.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,139.02 : 46,679.37 = 11,412.28 : x
  2. Step 2: Convert to fraction form
    31,139.02/46,679.37 = 11,412.28/x
  3. Step 3: Cross multiply
    31,139.02x = 46,679.37 × 11,412.28
  4. Step 4: Simplify right side
    31,139.02x = 532,718,040.66
  5. Step 5: Solve for x
    x = 532,718,040.66/31,139.02
  6. Step 6: Final answer
    x = 17,107.73

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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.