Home / 28,672.04-39,597.40-19,742.60

Finding the Fourth Proportional to 28,672.04, 39,597.40 and 19,742.60

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Solution

The fourth proportional to 28,672.04, 39,597.40 and 19,742.60 is: 27,265.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,672.04 : 39,597.40 = 19,742.60 : x
  2. Step 2: Convert to fraction form
    28,672.04/39,597.40 = 19,742.60/x
  3. Step 3: Cross multiply
    28,672.04x = 39,597.40 × 19,742.60
  4. Step 4: Simplify right side
    28,672.04x = 781,755,629.24
  5. Step 5: Solve for x
    x = 781,755,629.24/28,672.04
  6. Step 6: Final answer
    x = 27,265.43

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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.