Home / 20,237.56-27,917.80-13,525.29

Finding the Fourth Proportional to 20,237.56, 27,917.80 and 13,525.29

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Solution

The fourth proportional to 20,237.56, 27,917.80 and 13,525.29 is: 18,658.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,237.56 : 27,917.80 = 13,525.29 : x
  2. Step 2: Convert to fraction form
    20,237.56/27,917.80 = 13,525.29/x
  3. Step 3: Cross multiply
    20,237.56x = 27,917.80 × 13,525.29
  4. Step 4: Simplify right side
    20,237.56x = 377,596,341.16
  5. Step 5: Solve for x
    x = 377,596,341.16/20,237.56
  6. Step 6: Final answer
    x = 18,658.20

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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.