Home / 30,459.06-45,654.66-12,679.92

Finding the Fourth Proportional to 30,459.06, 45,654.66 and 12,679.92

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Solution

The fourth proportional to 30,459.06, 45,654.66 and 12,679.92 is: 19,005.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,459.06 : 45,654.66 = 12,679.92 : x
  2. Step 2: Convert to fraction form
    30,459.06/45,654.66 = 12,679.92/x
  3. Step 3: Cross multiply
    30,459.06x = 45,654.66 × 12,679.92
  4. Step 4: Simplify right side
    30,459.06x = 578,897,436.43
  5. Step 5: Solve for x
    x = 578,897,436.43/30,459.06
  6. Step 6: Final answer
    x = 19,005.76

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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.