Home / 30,284.56-45,423.65-8,100.18

Finding the Fourth Proportional to 30,284.56, 45,423.65 and 8,100.18

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Solution

The fourth proportional to 30,284.56, 45,423.65 and 8,100.18 is: 12,149.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,284.56 : 45,423.65 = 8,100.18 : x
  2. Step 2: Convert to fraction form
    30,284.56/45,423.65 = 8,100.18/x
  3. Step 3: Cross multiply
    30,284.56x = 45,423.65 × 8,100.18
  4. Step 4: Simplify right side
    30,284.56x = 367,939,761.51
  5. Step 5: Solve for x
    x = 367,939,761.51/30,284.56
  6. Step 6: Final answer
    x = 12,149.42

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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.