Home / 19,815.99-27,322.15-17,122.34

Finding the Fourth Proportional to 19,815.99, 27,322.15 and 17,122.34

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Solution

The fourth proportional to 19,815.99, 27,322.15 and 17,122.34 is: 23,608.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,815.99 : 27,322.15 = 17,122.34 : x
  2. Step 2: Convert to fraction form
    19,815.99/27,322.15 = 17,122.34/x
  3. Step 3: Cross multiply
    19,815.99x = 27,322.15 × 17,122.34
  4. Step 4: Simplify right side
    19,815.99x = 467,818,962.41
  5. Step 5: Solve for x
    x = 467,818,962.41/19,815.99
  6. Step 6: Final answer
    x = 23,608.16

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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.