Home / 30,630.76-45,943.26-13,114.60

Finding the Fourth Proportional to 30,630.76, 45,943.26 and 13,114.60

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Solution

The fourth proportional to 30,630.76, 45,943.26 and 13,114.60 is: 19,670.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,630.76 : 45,943.26 = 13,114.60 : x
  2. Step 2: Convert to fraction form
    30,630.76/45,943.26 = 13,114.60/x
  3. Step 3: Cross multiply
    30,630.76x = 45,943.26 × 13,114.60
  4. Step 4: Simplify right side
    30,630.76x = 602,527,477.60
  5. Step 5: Solve for x
    x = 602,527,477.60/30,630.76
  6. Step 6: Final answer
    x = 19,670.67

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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.