Home / 28,879.93-39,837.68-17,386.85

Finding the Fourth Proportional to 28,879.93, 39,837.68 and 17,386.85

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Solution

The fourth proportional to 28,879.93, 39,837.68 and 17,386.85 is: 23,983.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,879.93 : 39,837.68 = 17,386.85 : x
  2. Step 2: Convert to fraction form
    28,879.93/39,837.68 = 17,386.85/x
  3. Step 3: Cross multiply
    28,879.93x = 39,837.68 × 17,386.85
  4. Step 4: Simplify right side
    28,879.93x = 692,651,683.42
  5. Step 5: Solve for x
    x = 692,651,683.42/28,879.93
  6. Step 6: Final answer
    x = 23,983.84

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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.