Home / 30,513.86-45,771.10-14,715.21

Finding the Fourth Proportional to 30,513.86, 45,771.10 and 14,715.21

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Solution

The fourth proportional to 30,513.86, 45,771.10 and 14,715.21 is: 22,072.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,513.86 : 45,771.10 = 14,715.21 : x
  2. Step 2: Convert to fraction form
    30,513.86/45,771.10 = 14,715.21/x
  3. Step 3: Cross multiply
    30,513.86x = 45,771.10 × 14,715.21
  4. Step 4: Simplify right side
    30,513.86x = 673,531,483.28
  5. Step 5: Solve for x
    x = 673,531,483.28/30,513.86
  6. Step 6: Final answer
    x = 22,072.97

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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.