Home / 34,760.39-47,971.80-19,653.20

Finding the Fourth Proportional to 34,760.39, 47,971.80 and 19,653.20

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Solution

The fourth proportional to 34,760.39, 47,971.80 and 19,653.20 is: 27,122.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,760.39 : 47,971.80 = 19,653.20 : x
  2. Step 2: Convert to fraction form
    34,760.39/47,971.80 = 19,653.20/x
  3. Step 3: Cross multiply
    34,760.39x = 47,971.80 × 19,653.20
  4. Step 4: Simplify right side
    34,760.39x = 942,799,379.76
  5. Step 5: Solve for x
    x = 942,799,379.76/34,760.39
  6. Step 6: Final answer
    x = 27,122.81

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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.