Home / 30,146.40-45,219.60-9,367.20

Finding the Fourth Proportional to 30,146.40, 45,219.60 and 9,367.20

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Solution

The fourth proportional to 30,146.40, 45,219.60 and 9,367.20 is: 14,050.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,146.40 : 45,219.60 = 9,367.20 : x
  2. Step 2: Convert to fraction form
    30,146.40/45,219.60 = 9,367.20/x
  3. Step 3: Cross multiply
    30,146.40x = 45,219.60 × 9,367.20
  4. Step 4: Simplify right side
    30,146.40x = 423,581,037.12
  5. Step 5: Solve for x
    x = 423,581,037.12/30,146.40
  6. Step 6: Final answer
    x = 14,050.80

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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.