Home / 21,045.27-31,573.40-7,007.43

Finding the Fourth Proportional to 21,045.27, 31,573.40 and 7,007.43

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Solution

The fourth proportional to 21,045.27, 31,573.40 and 7,007.43 is: 10,512.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,045.27 : 31,573.40 = 7,007.43 : x
  2. Step 2: Convert to fraction form
    21,045.27/31,573.40 = 7,007.43/x
  3. Step 3: Cross multiply
    21,045.27x = 31,573.40 × 7,007.43
  4. Step 4: Simplify right side
    21,045.27x = 221,248,355.32
  5. Step 5: Solve for x
    x = 221,248,355.32/21,045.27
  6. Step 6: Final answer
    x = 10,512.97

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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.