Home / 21,537.50-29,719.16-11,974.99

Finding the Fourth Proportional to 21,537.50, 29,719.16 and 11,974.99

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Solution

The fourth proportional to 21,537.50, 29,719.16 and 11,974.99 is: 16,524.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,537.50 : 29,719.16 = 11,974.99 : x
  2. Step 2: Convert to fraction form
    21,537.50/29,719.16 = 11,974.99/x
  3. Step 3: Cross multiply
    21,537.50x = 29,719.16 × 11,974.99
  4. Step 4: Simplify right side
    21,537.50x = 355,886,643.81
  5. Step 5: Solve for x
    x = 355,886,643.81/21,537.50
  6. Step 6: Final answer
    x = 16,524.05

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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.