Home / 21,081.04-31,621.53-6,300.31

Finding the Fourth Proportional to 21,081.04, 31,621.53 and 6,300.31

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Solution

The fourth proportional to 21,081.04, 31,621.53 and 6,300.31 is: 9,450.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,081.04 : 31,621.53 = 6,300.31 : x
  2. Step 2: Convert to fraction form
    21,081.04/31,621.53 = 6,300.31/x
  3. Step 3: Cross multiply
    21,081.04x = 31,621.53 × 6,300.31
  4. Step 4: Simplify right side
    21,081.04x = 199,225,441.67
  5. Step 5: Solve for x
    x = 199,225,441.67/21,081.04
  6. Step 6: Final answer
    x = 9,450.46

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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.