Home / 21,001.69-31,450.83-13,583.44

Finding the Fourth Proportional to 21,001.69, 31,450.83 and 13,583.44

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Solution

The fourth proportional to 21,001.69, 31,450.83 and 13,583.44 is: 20,341.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,001.69 : 31,450.83 = 13,583.44 : x
  2. Step 2: Convert to fraction form
    21,001.69/31,450.83 = 13,583.44/x
  3. Step 3: Cross multiply
    21,001.69x = 31,450.83 × 13,583.44
  4. Step 4: Simplify right side
    21,001.69x = 427,210,462.26
  5. Step 5: Solve for x
    x = 427,210,462.26/21,001.69
  6. Step 6: Final answer
    x = 20,341.72

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1.5x scale

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.