Home / 16,121.70-23,987.48-15,719.94

Finding the Fourth Proportional to 16,121.70, 23,987.48 and 15,719.94

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Solution

The fourth proportional to 16,121.70, 23,987.48 and 15,719.94 is: 23,389.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,121.70 : 23,987.48 = 15,719.94 : x
  2. Step 2: Convert to fraction form
    16,121.70/23,987.48 = 15,719.94/x
  3. Step 3: Cross multiply
    16,121.70x = 23,987.48 × 15,719.94
  4. Step 4: Simplify right side
    16,121.70x = 377,081,746.35
  5. Step 5: Solve for x
    x = 377,081,746.35/16,121.70
  6. Step 6: Final answer
    x = 23,389.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.