Home / 31,357.73-47,049.76-19,521.41

Finding the Fourth Proportional to 31,357.73, 47,049.76 and 19,521.41

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Solution

The fourth proportional to 31,357.73, 47,049.76 and 19,521.41 is: 29,290.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,357.73 : 47,049.76 = 19,521.41 : x
  2. Step 2: Convert to fraction form
    31,357.73/47,049.76 = 19,521.41/x
  3. Step 3: Cross multiply
    31,357.73x = 47,049.76 × 19,521.41
  4. Step 4: Simplify right side
    31,357.73x = 918,477,444.51
  5. Step 5: Solve for x
    x = 918,477,444.51/31,357.73
  6. Step 6: Final answer
    x = 29,290.30

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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.