Home / 28,749.33-39,646.26-18,680.49

Finding the Fourth Proportional to 28,749.33, 39,646.26 and 18,680.49

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Solution

The fourth proportional to 28,749.33, 39,646.26 and 18,680.49 is: 25,761.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,749.33 : 39,646.26 = 18,680.49 : x
  2. Step 2: Convert to fraction form
    28,749.33/39,646.26 = 18,680.49/x
  3. Step 3: Cross multiply
    28,749.33x = 39,646.26 × 18,680.49
  4. Step 4: Simplify right side
    28,749.33x = 740,611,563.47
  5. Step 5: Solve for x
    x = 740,611,563.47/28,749.33
  6. Step 6: Final answer
    x = 25,761.00

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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.