Home / 26,786.40-36,955.20-15,447.84

Finding the Fourth Proportional to 26,786.40, 36,955.20 and 15,447.84

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Solution

The fourth proportional to 26,786.40, 36,955.20 and 15,447.84 is: 21,312.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,786.40 : 36,955.20 = 15,447.84 : x
  2. Step 2: Convert to fraction form
    26,786.40/36,955.20 = 15,447.84/x
  3. Step 3: Cross multiply
    26,786.40x = 36,955.20 × 15,447.84
  4. Step 4: Simplify right side
    26,786.40x = 570,878,016.77
  5. Step 5: Solve for x
    x = 570,878,016.77/26,786.40
  6. Step 6: Final answer
    x = 21,312.23

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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.