Home / 30,273.13-45,409.70-12,731.77

Finding the Fourth Proportional to 30,273.13, 45,409.70 and 12,731.77

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Solution

The fourth proportional to 30,273.13, 45,409.70 and 12,731.77 is: 19,097.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,273.13 : 45,409.70 = 12,731.77 : x
  2. Step 2: Convert to fraction form
    30,273.13/45,409.70 = 12,731.77/x
  3. Step 3: Cross multiply
    30,273.13x = 45,409.70 × 12,731.77
  4. Step 4: Simplify right side
    30,273.13x = 578,145,856.17
  5. Step 5: Solve for x
    x = 578,145,856.17/30,273.13
  6. Step 6: Final answer
    x = 19,097.66

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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.