Home / 19,888.74-29,887.79-18,588.38

Finding the Fourth Proportional to 19,888.74, 29,887.79 and 18,588.38

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Solution

The fourth proportional to 19,888.74, 29,887.79 and 18,588.38 is: 27,933.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,888.74 : 29,887.79 = 18,588.38 : x
  2. Step 2: Convert to fraction form
    19,888.74/29,887.79 = 18,588.38/x
  3. Step 3: Cross multiply
    19,888.74x = 29,887.79 × 18,588.38
  4. Step 4: Simplify right side
    19,888.74x = 555,565,597.88
  5. Step 5: Solve for x
    x = 555,565,597.88/19,888.74
  6. Step 6: Final answer
    x = 27,933.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.