Home / 31,157.32-46,751.22-19,307.92

Finding the Fourth Proportional to 31,157.32, 46,751.22 and 19,307.92

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Solution

The fourth proportional to 31,157.32, 46,751.22 and 19,307.92 is: 28,971.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,157.32 : 46,751.22 = 19,307.92 : x
  2. Step 2: Convert to fraction form
    31,157.32/46,751.22 = 19,307.92/x
  3. Step 3: Cross multiply
    31,157.32x = 46,751.22 × 19,307.92
  4. Step 4: Simplify right side
    31,157.32x = 902,668,815.66
  5. Step 5: Solve for x
    x = 902,668,815.66/31,157.32
  6. Step 6: Final answer
    x = 28,971.33

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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.