Home / 28,228.40-38,921.12-24,393.18

Finding the Fourth Proportional to 28,228.40, 38,921.12 and 24,393.18

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Solution

The fourth proportional to 28,228.40, 38,921.12 and 24,393.18 is: 33,633.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,228.40 : 38,921.12 = 24,393.18 : x
  2. Step 2: Convert to fraction form
    28,228.40/38,921.12 = 24,393.18/x
  3. Step 3: Cross multiply
    28,228.40x = 38,921.12 × 24,393.18
  4. Step 4: Simplify right side
    28,228.40x = 949,409,764.00
  5. Step 5: Solve for x
    x = 949,409,764.00/28,228.40
  6. Step 6: Final answer
    x = 33,633.15

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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.