Home / 30,090.32-45,135.68-7,903.52

Finding the Fourth Proportional to 30,090.32, 45,135.68 and 7,903.52

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Solution

The fourth proportional to 30,090.32, 45,135.68 and 7,903.52 is: 11,855.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,090.32 : 45,135.68 = 7,903.52 : x
  2. Step 2: Convert to fraction form
    30,090.32/45,135.68 = 7,903.52/x
  3. Step 3: Cross multiply
    30,090.32x = 45,135.68 × 7,903.52
  4. Step 4: Simplify right side
    30,090.32x = 356,730,749.59
  5. Step 5: Solve for x
    x = 356,730,749.59/30,090.32
  6. Step 6: Final answer
    x = 11,855.33

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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.