Home / 19,623.36-27,088.08-12,072.78

Finding the Fourth Proportional to 19,623.36, 27,088.08 and 12,072.78

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Solution

The fourth proportional to 19,623.36, 27,088.08 and 12,072.78 is: 16,665.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,623.36 : 27,088.08 = 12,072.78 : x
  2. Step 2: Convert to fraction form
    19,623.36/27,088.08 = 12,072.78/x
  3. Step 3: Cross multiply
    19,623.36x = 27,088.08 × 12,072.78
  4. Step 4: Simplify right side
    19,623.36x = 327,028,430.46
  5. Step 5: Solve for x
    x = 327,028,430.46/19,623.36
  6. Step 6: Final answer
    x = 16,665.26

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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.