Home / 16,824.30-23,190.21-13,456.32

Finding the Fourth Proportional to 16,824.30, 23,190.21 and 13,456.32

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Solution

The fourth proportional to 16,824.30, 23,190.21 and 13,456.32 is: 18,547.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,824.30 : 23,190.21 = 13,456.32 : x
  2. Step 2: Convert to fraction form
    16,824.30/23,190.21 = 13,456.32/x
  3. Step 3: Cross multiply
    16,824.30x = 23,190.21 × 13,456.32
  4. Step 4: Simplify right side
    16,824.30x = 312,054,886.63
  5. Step 5: Solve for x
    x = 312,054,886.63/16,824.30
  6. Step 6: Final answer
    x = 18,547.87

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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.