Home / 21,746.80-32,616.78-18,072.64

Finding the Fourth Proportional to 21,746.80, 32,616.78 and 18,072.64

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Solution

The fourth proportional to 21,746.80, 32,616.78 and 18,072.64 is: 27,106.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,746.80 : 32,616.78 = 18,072.64 : x
  2. Step 2: Convert to fraction form
    21,746.80/32,616.78 = 18,072.64/x
  3. Step 3: Cross multiply
    21,746.80x = 32,616.78 × 18,072.64
  4. Step 4: Simplify right side
    21,746.80x = 589,471,322.90
  5. Step 5: Solve for x
    x = 589,471,322.90/21,746.80
  6. Step 6: Final answer
    x = 27,106.12

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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.