Home / 20,432.69-30,630.53-14,195.62

Finding the Fourth Proportional to 20,432.69, 30,630.53 and 14,195.62

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Solution

The fourth proportional to 20,432.69, 30,630.53 and 14,195.62 is: 21,280.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,432.69 : 30,630.53 = 14,195.62 : x
  2. Step 2: Convert to fraction form
    20,432.69/30,630.53 = 14,195.62/x
  3. Step 3: Cross multiply
    20,432.69x = 30,630.53 × 14,195.62
  4. Step 4: Simplify right side
    20,432.69x = 434,819,364.28
  5. Step 5: Solve for x
    x = 434,819,364.28/20,432.69
  6. Step 6: Final answer
    x = 21,280.57

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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.