Home / 28,877.58-39,839.19-19,449.18

Finding the Fourth Proportional to 28,877.58, 39,839.19 and 19,449.18

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Solution

The fourth proportional to 28,877.58, 39,839.19 and 19,449.18 is: 26,831.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,877.58 : 39,839.19 = 19,449.18 : x
  2. Step 2: Convert to fraction form
    28,877.58/39,839.19 = 19,449.18/x
  3. Step 3: Cross multiply
    28,877.58x = 39,839.19 × 19,449.18
  4. Step 4: Simplify right side
    28,877.58x = 774,839,577.36
  5. Step 5: Solve for x
    x = 774,839,577.36/28,877.58
  6. Step 6: Final answer
    x = 26,831.87

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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.