Home / 20,580.21-28,409.54-14,842.17

Finding the Fourth Proportional to 20,580.21, 28,409.54 and 14,842.17

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Solution

The fourth proportional to 20,580.21, 28,409.54 and 14,842.17 is: 20,488.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,580.21 : 28,409.54 = 14,842.17 : x
  2. Step 2: Convert to fraction form
    20,580.21/28,409.54 = 14,842.17/x
  3. Step 3: Cross multiply
    20,580.21x = 28,409.54 × 14,842.17
  4. Step 4: Simplify right side
    20,580.21x = 421,659,148.09
  5. Step 5: Solve for x
    x = 421,659,148.09/20,580.21
  6. Step 6: Final answer
    x = 20,488.57

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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.