Home / 19,720.59-27,215.07-10,768.77

Finding the Fourth Proportional to 19,720.59, 27,215.07 and 10,768.77

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Solution

The fourth proportional to 19,720.59, 27,215.07 and 10,768.77 is: 14,861.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,720.59 : 27,215.07 = 10,768.77 : x
  2. Step 2: Convert to fraction form
    19,720.59/27,215.07 = 10,768.77/x
  3. Step 3: Cross multiply
    19,720.59x = 27,215.07 × 10,768.77
  4. Step 4: Simplify right side
    19,720.59x = 293,072,829.36
  5. Step 5: Solve for x
    x = 293,072,829.36/19,720.59
  6. Step 6: Final answer
    x = 14,861.26

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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.