Home / 30,122.67-45,165.76-13,479.60

Finding the Fourth Proportional to 30,122.67, 45,165.76 and 13,479.60

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Solution

The fourth proportional to 30,122.67, 45,165.76 and 13,479.60 is: 20,211.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,122.67 : 45,165.76 = 13,479.60 : x
  2. Step 2: Convert to fraction form
    30,122.67/45,165.76 = 13,479.60/x
  3. Step 3: Cross multiply
    30,122.67x = 45,165.76 × 13,479.60
  4. Step 4: Simplify right side
    30,122.67x = 608,816,378.50
  5. Step 5: Solve for x
    x = 608,816,378.50/30,122.67
  6. Step 6: Final answer
    x = 20,211.24

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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.