Home / 30,459.11-45,676.55-11,728.77

Finding the Fourth Proportional to 30,459.11, 45,676.55 and 11,728.77

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Solution

The fourth proportional to 30,459.11, 45,676.55 and 11,728.77 is: 17,588.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,459.11 : 45,676.55 = 11,728.77 : x
  2. Step 2: Convert to fraction form
    30,459.11/45,676.55 = 11,728.77/x
  3. Step 3: Cross multiply
    30,459.11x = 45,676.55 × 11,728.77
  4. Step 4: Simplify right side
    30,459.11x = 535,729,690.70
  5. Step 5: Solve for x
    x = 535,729,690.70/30,459.11
  6. Step 6: Final answer
    x = 17,588.49

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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.