Home / 31,186.37-46,791.18-18,715.34

Finding the Fourth Proportional to 31,186.37, 46,791.18 and 18,715.34

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Solution

The fourth proportional to 31,186.37, 46,791.18 and 18,715.34 is: 28,079.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,186.37 : 46,791.18 = 18,715.34 : x
  2. Step 2: Convert to fraction form
    31,186.37/46,791.18 = 18,715.34/x
  3. Step 3: Cross multiply
    31,186.37x = 46,791.18 × 18,715.34
  4. Step 4: Simplify right side
    31,186.37x = 875,712,959.68
  5. Step 5: Solve for x
    x = 875,712,959.68/31,186.37
  6. Step 6: Final answer
    x = 28,079.99

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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.