Home / 20,701.36-30,893-18,486.96

Finding the Fourth Proportional to 20,701.36, 30,893 and 18,486.96

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Solution

The fourth proportional to 20,701.36, 30,893 and 18,486.96 is: 27,588.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,701.36 : 30,893 = 18,486.96 : x
  2. Step 2: Convert to fraction form
    20,701.36/30,893 = 18,486.96/x
  3. Step 3: Cross multiply
    20,701.36x = 30,893 × 18,486.96
  4. Step 4: Simplify right side
    20,701.36x = 571,117,655.28
  5. Step 5: Solve for x
    x = 571,117,655.28/20,701.36
  6. Step 6: Final answer
    x = 27,588.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.