Home / 21,044.06-31,569.11-6,999.47

Finding the Fourth Proportional to 21,044.06, 31,569.11 and 6,999.47

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Solution

The fourth proportional to 21,044.06, 31,569.11 and 6,999.47 is: 10,500.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,044.06 : 31,569.11 = 6,999.47 : x
  2. Step 2: Convert to fraction form
    21,044.06/31,569.11 = 6,999.47/x
  3. Step 3: Cross multiply
    21,044.06x = 31,569.11 × 6,999.47
  4. Step 4: Simplify right side
    21,044.06x = 220,967,038.37
  5. Step 5: Solve for x
    x = 220,967,038.37/21,044.06
  6. Step 6: Final answer
    x = 10,500.21

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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.