Home / 20,507.96-28,302.27-11,554.49

Finding the Fourth Proportional to 20,507.96, 28,302.27 and 11,554.49

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Solution

The fourth proportional to 20,507.96, 28,302.27 and 11,554.49 is: 15,945.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,507.96 : 28,302.27 = 11,554.49 : x
  2. Step 2: Convert to fraction form
    20,507.96/28,302.27 = 11,554.49/x
  3. Step 3: Cross multiply
    20,507.96x = 28,302.27 × 11,554.49
  4. Step 4: Simplify right side
    20,507.96x = 327,018,295.69
  5. Step 5: Solve for x
    x = 327,018,295.69/20,507.96
  6. Step 6: Final answer
    x = 15,945.92

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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.