Home / 20,090.06-30,135.65-7,607.76

Finding the Fourth Proportional to 20,090.06, 30,135.65 and 7,607.76

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Solution

The fourth proportional to 20,090.06, 30,135.65 and 7,607.76 is: 11,411.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,090.06 : 30,135.65 = 7,607.76 : x
  2. Step 2: Convert to fraction form
    20,090.06/30,135.65 = 7,607.76/x
  3. Step 3: Cross multiply
    20,090.06x = 30,135.65 × 7,607.76
  4. Step 4: Simplify right side
    20,090.06x = 229,264,641.60
  5. Step 5: Solve for x
    x = 229,264,641.60/20,090.06
  6. Step 6: Final answer
    x = 11,411.85

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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.