Home / 30,425.15-45,634.27-8,240.26

Finding the Fourth Proportional to 30,425.15, 45,634.27 and 8,240.26

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Solution

The fourth proportional to 30,425.15, 45,634.27 and 8,240.26 is: 12,359.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,425.15 : 45,634.27 = 8,240.26 : x
  2. Step 2: Convert to fraction form
    30,425.15/45,634.27 = 8,240.26/x
  3. Step 3: Cross multiply
    30,425.15x = 45,634.27 × 8,240.26
  4. Step 4: Simplify right side
    30,425.15x = 376,037,980.34
  5. Step 5: Solve for x
    x = 376,037,980.34/30,425.15
  6. Step 6: Final answer
    x = 12,359.45

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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.