Home / 28,968.81-39,980.31-17,644.95

Finding the Fourth Proportional to 28,968.81, 39,980.31 and 17,644.95

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Solution

The fourth proportional to 28,968.81, 39,980.31 and 17,644.95 is: 24,352.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,968.81 : 39,980.31 = 17,644.95 : x
  2. Step 2: Convert to fraction form
    28,968.81/39,980.31 = 17,644.95/x
  3. Step 3: Cross multiply
    28,968.81x = 39,980.31 × 17,644.95
  4. Step 4: Simplify right side
    28,968.81x = 705,450,570.93
  5. Step 5: Solve for x
    x = 705,450,570.93/28,968.81
  6. Step 6: Final answer
    x = 24,352.07

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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.