Home / 31,114.63-42,941.42-19,177.66

Finding the Fourth Proportional to 31,114.63, 42,941.42 and 19,177.66

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Solution

The fourth proportional to 31,114.63, 42,941.42 and 19,177.66 is: 26,467.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,114.63 : 42,941.42 = 19,177.66 : x
  2. Step 2: Convert to fraction form
    31,114.63/42,941.42 = 19,177.66/x
  3. Step 3: Cross multiply
    31,114.63x = 42,941.42 × 19,177.66
  4. Step 4: Simplify right side
    31,114.63x = 823,515,785.91
  5. Step 5: Solve for x
    x = 823,515,785.91/31,114.63
  6. Step 6: Final answer
    x = 26,467.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.