Home / 19,007.60-28,478.67-13,451.80

Finding the Fourth Proportional to 19,007.60, 28,478.67 and 13,451.80

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Solution

The fourth proportional to 19,007.60, 28,478.67 and 13,451.80 is: 20,154.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,007.60 : 28,478.67 = 13,451.80 : x
  2. Step 2: Convert to fraction form
    19,007.60/28,478.67 = 13,451.80/x
  3. Step 3: Cross multiply
    19,007.60x = 28,478.67 × 13,451.80
  4. Step 4: Simplify right side
    19,007.60x = 383,089,373.11
  5. Step 5: Solve for x
    x = 383,089,373.11/19,007.60
  6. Step 6: Final answer
    x = 20,154.54

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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.