Home / 20,699.65-31,045.07-5,904.60

Finding the Fourth Proportional to 20,699.65, 31,045.07 and 5,904.60

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Solution

The fourth proportional to 20,699.65, 31,045.07 and 5,904.60 is: 8,855.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,699.65 : 31,045.07 = 5,904.60 : x
  2. Step 2: Convert to fraction form
    20,699.65/31,045.07 = 5,904.60/x
  3. Step 3: Cross multiply
    20,699.65x = 31,045.07 × 5,904.60
  4. Step 4: Simplify right side
    20,699.65x = 183,308,618.66
  5. Step 5: Solve for x
    x = 183,308,618.66/20,699.65
  6. Step 6: Final answer
    x = 8,855.64

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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.