Home / 21,044.36-31,555.70-6,999.32

Finding the Fourth Proportional to 21,044.36, 31,555.70 and 6,999.32

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Solution

The fourth proportional to 21,044.36, 31,555.70 and 6,999.32 is: 10,495.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,044.36 : 31,555.70 = 6,999.32 : x
  2. Step 2: Convert to fraction form
    21,044.36/31,555.70 = 6,999.32/x
  3. Step 3: Cross multiply
    21,044.36x = 31,555.70 × 6,999.32
  4. Step 4: Simplify right side
    21,044.36x = 220,868,442.12
  5. Step 5: Solve for x
    x = 220,868,442.12/21,044.36
  6. Step 6: Final answer
    x = 10,495.37

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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.