Home / 20,349.23-30,476.45-19,788.71

Finding the Fourth Proportional to 20,349.23, 30,476.45 and 19,788.71

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Solution

The fourth proportional to 20,349.23, 30,476.45 and 19,788.71 is: 29,636.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,349.23 : 30,476.45 = 19,788.71 : x
  2. Step 2: Convert to fraction form
    20,349.23/30,476.45 = 19,788.71/x
  3. Step 3: Cross multiply
    20,349.23x = 30,476.45 × 19,788.71
  4. Step 4: Simplify right side
    20,349.23x = 603,089,527.97
  5. Step 5: Solve for x
    x = 603,089,527.97/20,349.23
  6. Step 6: Final answer
    x = 29,636.98

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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.