Home / 30,520.20-45,785.70-10,810.20

Finding the Fourth Proportional to 30,520.20, 45,785.70 and 10,810.20

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Solution

The fourth proportional to 30,520.20, 45,785.70 and 10,810.20 is: 16,217.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,520.20 : 45,785.70 = 10,810.20 : x
  2. Step 2: Convert to fraction form
    30,520.20/45,785.70 = 10,810.20/x
  3. Step 3: Cross multiply
    30,520.20x = 45,785.70 × 10,810.20
  4. Step 4: Simplify right side
    30,520.20x = 494,952,574.14
  5. Step 5: Solve for x
    x = 494,952,574.14/30,520.20
  6. Step 6: Final answer
    x = 16,217.21

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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.