Home / 21,283.40-31,930.09-6,492.31

Finding the Fourth Proportional to 21,283.40, 31,930.09 and 6,492.31

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Solution

The fourth proportional to 21,283.40, 31,930.09 and 6,492.31 is: 9,740.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,283.40 : 31,930.09 = 6,492.31 : x
  2. Step 2: Convert to fraction form
    21,283.40/31,930.09 = 6,492.31/x
  3. Step 3: Cross multiply
    21,283.40x = 31,930.09 × 6,492.31
  4. Step 4: Simplify right side
    21,283.40x = 207,300,208.15
  5. Step 5: Solve for x
    x = 207,300,208.15/21,283.40
  6. Step 6: Final answer
    x = 9,740.00

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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.