Home / 13,354.89-20,030.80-3,495.12

Finding the Fourth Proportional to 13,354.89, 20,030.80 and 3,495.12

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Solution

The fourth proportional to 13,354.89, 20,030.80 and 3,495.12 is: 5,242.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,354.89 : 20,030.80 = 3,495.12 : x
  2. Step 2: Convert to fraction form
    13,354.89/20,030.80 = 3,495.12/x
  3. Step 3: Cross multiply
    13,354.89x = 20,030.80 × 3,495.12
  4. Step 4: Simplify right side
    13,354.89x = 70,010,049.70
  5. Step 5: Solve for x
    x = 70,010,049.70/13,354.89
  6. Step 6: Final answer
    x = 5,242.28

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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.