Home / 19,720.58-27,214.27-10,768.08

Finding the Fourth Proportional to 19,720.58, 27,214.27 and 10,768.08

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Solution

The fourth proportional to 19,720.58, 27,214.27 and 10,768.08 is: 14,859.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,720.58 : 27,214.27 = 10,768.08 : x
  2. Step 2: Convert to fraction form
    19,720.58/27,214.27 = 10,768.08/x
  3. Step 3: Cross multiply
    19,720.58x = 27,214.27 × 10,768.08
  4. Step 4: Simplify right side
    19,720.58x = 293,045,409.58
  5. Step 5: Solve for x
    x = 293,045,409.58/19,720.58
  6. Step 6: Final answer
    x = 14,859.88

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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.