Home / 23,112.56-31,834.68-21,742.40

Finding the Fourth Proportional to 23,112.56, 31,834.68 and 21,742.40

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Solution

The fourth proportional to 23,112.56, 31,834.68 and 21,742.40 is: 29,947.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,112.56 : 31,834.68 = 21,742.40 : x
  2. Step 2: Convert to fraction form
    23,112.56/31,834.68 = 21,742.40/x
  3. Step 3: Cross multiply
    23,112.56x = 31,834.68 × 21,742.40
  4. Step 4: Simplify right side
    23,112.56x = 692,162,346.43
  5. Step 5: Solve for x
    x = 692,162,346.43/23,112.56
  6. Step 6: Final answer
    x = 29,947.45

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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.