Home / 20,127.50-27,776.43-11,295.50

Finding the Fourth Proportional to 20,127.50, 27,776.43 and 11,295.50

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Solution

The fourth proportional to 20,127.50, 27,776.43 and 11,295.50 is: 15,588.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,127.50 : 27,776.43 = 11,295.50 : x
  2. Step 2: Convert to fraction form
    20,127.50/27,776.43 = 11,295.50/x
  3. Step 3: Cross multiply
    20,127.50x = 27,776.43 × 11,295.50
  4. Step 4: Simplify right side
    20,127.50x = 313,748,665.07
  5. Step 5: Solve for x
    x = 313,748,665.07/20,127.50
  6. Step 6: Final answer
    x = 15,588.06

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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.