Home / 13,430.41-20,145.98-3,569.67

Finding the Fourth Proportional to 13,430.41, 20,145.98 and 3,569.67

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Solution

The fourth proportional to 13,430.41, 20,145.98 and 3,569.67 is: 5,354.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,430.41 : 20,145.98 = 3,569.67 : x
  2. Step 2: Convert to fraction form
    13,430.41/20,145.98 = 3,569.67/x
  3. Step 3: Cross multiply
    13,430.41x = 20,145.98 × 3,569.67
  4. Step 4: Simplify right side
    13,430.41x = 71,914,509.35
  5. Step 5: Solve for x
    x = 71,914,509.35/13,430.41
  6. Step 6: Final answer
    x = 5,354.60

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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.