Home / 28,967.10-39,980.84-17,640.34

Finding the Fourth Proportional to 28,967.10, 39,980.84 and 17,640.34

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Solution

The fourth proportional to 28,967.10, 39,980.84 and 17,640.34 is: 24,347.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,967.10 : 39,980.84 = 17,640.34 : x
  2. Step 2: Convert to fraction form
    28,967.10/39,980.84 = 17,640.34/x
  3. Step 3: Cross multiply
    28,967.10x = 39,980.84 × 17,640.34
  4. Step 4: Simplify right side
    28,967.10x = 705,275,611.09
  5. Step 5: Solve for x
    x = 705,275,611.09/28,967.10
  6. Step 6: Final answer
    x = 24,347.47

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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.