Home / 28,970.14-43,376.19-21,928.81

Finding the Fourth Proportional to 28,970.14, 43,376.19 and 21,928.81

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Solution

The fourth proportional to 28,970.14, 43,376.19 and 21,928.81 is: 32,833.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,970.14 : 43,376.19 = 21,928.81 : x
  2. Step 2: Convert to fraction form
    28,970.14/43,376.19 = 21,928.81/x
  3. Step 3: Cross multiply
    28,970.14x = 43,376.19 × 21,928.81
  4. Step 4: Simplify right side
    28,970.14x = 951,188,391.69
  5. Step 5: Solve for x
    x = 951,188,391.69/28,970.14
  6. Step 6: Final answer
    x = 32,833.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.