Home / 19,971.16-27,555.28-12,208.01

Finding the Fourth Proportional to 19,971.16, 27,555.28 and 12,208.01

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Solution

The fourth proportional to 19,971.16, 27,555.28 and 12,208.01 is: 16,844.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,971.16 : 27,555.28 = 12,208.01 : x
  2. Step 2: Convert to fraction form
    19,971.16/27,555.28 = 12,208.01/x
  3. Step 3: Cross multiply
    19,971.16x = 27,555.28 × 12,208.01
  4. Step 4: Simplify right side
    19,971.16x = 336,394,965.50
  5. Step 5: Solve for x
    x = 336,394,965.50/19,971.16
  6. Step 6: Final answer
    x = 16,844.04

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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.