Home / 19,670.01-27,140.42-13,297.61

Finding the Fourth Proportional to 19,670.01, 27,140.42 and 13,297.61

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Solution

The fourth proportional to 19,670.01, 27,140.42 and 13,297.61 is: 18,347.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,670.01 : 27,140.42 = 13,297.61 : x
  2. Step 2: Convert to fraction form
    19,670.01/27,140.42 = 13,297.61/x
  3. Step 3: Cross multiply
    19,670.01x = 27,140.42 × 13,297.61
  4. Step 4: Simplify right side
    19,670.01x = 360,902,518.21
  5. Step 5: Solve for x
    x = 360,902,518.21/19,670.01
  6. Step 6: Final answer
    x = 18,347.86

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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.