Home / 19,688.34-27,168.98-11,190.23

Finding the Fourth Proportional to 19,688.34, 27,168.98 and 11,190.23

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Solution

The fourth proportional to 19,688.34, 27,168.98 and 11,190.23 is: 15,441.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,688.34 : 27,168.98 = 11,190.23 : x
  2. Step 2: Convert to fraction form
    19,688.34/27,168.98 = 11,190.23/x
  3. Step 3: Cross multiply
    19,688.34x = 27,168.98 × 11,190.23
  4. Step 4: Simplify right side
    19,688.34x = 304,026,943.27
  5. Step 5: Solve for x
    x = 304,026,943.27/19,688.34
  6. Step 6: Final answer
    x = 15,441.98

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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.