Home / 20,588.99-28,394.96-13,416.17

Finding the Fourth Proportional to 20,588.99, 28,394.96 and 13,416.17

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Solution

The fourth proportional to 20,588.99, 28,394.96 and 13,416.17 is: 18,502.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,588.99 : 28,394.96 = 13,416.17 : x
  2. Step 2: Convert to fraction form
    20,588.99/28,394.96 = 13,416.17/x
  3. Step 3: Cross multiply
    20,588.99x = 28,394.96 × 13,416.17
  4. Step 4: Simplify right side
    20,588.99x = 380,951,401.45
  5. Step 5: Solve for x
    x = 380,951,401.45/20,588.99
  6. Step 6: Final answer
    x = 18,502.68

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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.