Home / 23,288.68-32,138.38-12,678.40

Finding the Fourth Proportional to 23,288.68, 32,138.38 and 12,678.40

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Solution

The fourth proportional to 23,288.68, 32,138.38 and 12,678.40 is: 17,496.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,288.68 : 32,138.38 = 12,678.40 : x
  2. Step 2: Convert to fraction form
    23,288.68/32,138.38 = 12,678.40/x
  3. Step 3: Cross multiply
    23,288.68x = 32,138.38 × 12,678.40
  4. Step 4: Simplify right side
    23,288.68x = 407,463,236.99
  5. Step 5: Solve for x
    x = 407,463,236.99/23,288.68
  6. Step 6: Final answer
    x = 17,496.19

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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.