Home / 31,271.64-43,161.53-19,938.52

Finding the Fourth Proportional to 31,271.64, 43,161.53 and 19,938.52

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Solution

The fourth proportional to 31,271.64, 43,161.53 and 19,938.52 is: 27,519.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,271.64 : 43,161.53 = 19,938.52 : x
  2. Step 2: Convert to fraction form
    31,271.64/43,161.53 = 19,938.52/x
  3. Step 3: Cross multiply
    31,271.64x = 43,161.53 × 19,938.52
  4. Step 4: Simplify right side
    31,271.64x = 860,576,983.39
  5. Step 5: Solve for x
    x = 860,576,983.39/31,271.64
  6. Step 6: Final answer
    x = 27,519.41

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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.