Home / 31,271.36-43,161.17-19,938.24

Finding the Fourth Proportional to 31,271.36, 43,161.17 and 19,938.24

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Solution

The fourth proportional to 31,271.36, 43,161.17 and 19,938.24 is: 27,519.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,271.36 : 43,161.17 = 19,938.24 : x
  2. Step 2: Convert to fraction form
    31,271.36/43,161.17 = 19,938.24/x
  3. Step 3: Cross multiply
    31,271.36x = 43,161.17 × 19,938.24
  4. Step 4: Simplify right side
    31,271.36x = 860,557,666.45
  5. Step 5: Solve for x
    x = 860,557,666.45/31,271.36
  6. Step 6: Final answer
    x = 27,519.04

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Double scale
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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.