Home / 15,690.70-23,568.86-13,230.33

Finding the Fourth Proportional to 15,690.70, 23,568.86 and 13,230.33

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Solution

The fourth proportional to 15,690.70, 23,568.86 and 13,230.33 is: 19,873.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,690.70 : 23,568.86 = 13,230.33 : x
  2. Step 2: Convert to fraction form
    15,690.70/23,568.86 = 13,230.33/x
  3. Step 3: Cross multiply
    15,690.70x = 23,568.86 × 13,230.33
  4. Step 4: Simplify right side
    15,690.70x = 311,823,795.52
  5. Step 5: Solve for x
    x = 311,823,795.52/15,690.70
  6. Step 6: Final answer
    x = 19,873.16

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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.