Home / 29,615.40-40,840.98-19,391.18

Finding the Fourth Proportional to 29,615.40, 40,840.98 and 19,391.18

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Solution

The fourth proportional to 29,615.40, 40,840.98 and 19,391.18 is: 26,741.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,615.40 : 40,840.98 = 19,391.18 : x
  2. Step 2: Convert to fraction form
    29,615.40/40,840.98 = 19,391.18/x
  3. Step 3: Cross multiply
    29,615.40x = 40,840.98 × 19,391.18
  4. Step 4: Simplify right side
    29,615.40x = 791,954,517.63
  5. Step 5: Solve for x
    x = 791,954,517.63/29,615.40
  6. Step 6: Final answer
    x = 26,741.31

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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.