Home / 28,807-39,766.98-20,316.04

Finding the Fourth Proportional to 28,807, 39,766.98 and 20,316.04

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Solution

The fourth proportional to 28,807, 39,766.98 and 20,316.04 is: 28,045.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,807 : 39,766.98 = 20,316.04 : x
  2. Step 2: Convert to fraction form
    28,807/39,766.98 = 20,316.04/x
  3. Step 3: Cross multiply
    28,807x = 39,766.98 × 20,316.04
  4. Step 4: Simplify right side
    28,807x = 807,907,556.36
  5. Step 5: Solve for x
    x = 807,907,556.36/28,807
  6. Step 6: Final answer
    x = 28,045.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.