Home / 30,372.90-45,519.60-16,316.49

Finding the Fourth Proportional to 30,372.90, 45,519.60 and 16,316.49

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Solution

The fourth proportional to 30,372.90, 45,519.60 and 16,316.49 is: 24,453.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,372.90 : 45,519.60 = 16,316.49 : x
  2. Step 2: Convert to fraction form
    30,372.90/45,519.60 = 16,316.49/x
  3. Step 3: Cross multiply
    30,372.90x = 45,519.60 × 16,316.49
  4. Step 4: Simplify right side
    30,372.90x = 742,720,098.20
  5. Step 5: Solve for x
    x = 742,720,098.20/30,372.90
  6. Step 6: Final answer
    x = 24,453.38

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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.