Home / 20,966.65-31,450.95-6,927.93

Finding the Fourth Proportional to 20,966.65, 31,450.95 and 6,927.93

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Solution

The fourth proportional to 20,966.65, 31,450.95 and 6,927.93 is: 10,392.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,966.65 : 31,450.95 = 6,927.93 : x
  2. Step 2: Convert to fraction form
    20,966.65/31,450.95 = 6,927.93/x
  3. Step 3: Cross multiply
    20,966.65x = 31,450.95 × 6,927.93
  4. Step 4: Simplify right side
    20,966.65x = 217,889,980.03
  5. Step 5: Solve for x
    x = 217,889,980.03/20,966.65
  6. Step 6: Final answer
    x = 10,392.22

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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.