Home / 30,243.44-45,318.96-12,703.68

Finding the Fourth Proportional to 30,243.44, 45,318.96 and 12,703.68

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Solution

The fourth proportional to 30,243.44, 45,318.96 and 12,703.68 is: 19,036.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,243.44 : 45,318.96 = 12,703.68 : x
  2. Step 2: Convert to fraction form
    30,243.44/45,318.96 = 12,703.68/x
  3. Step 3: Cross multiply
    30,243.44x = 45,318.96 × 12,703.68
  4. Step 4: Simplify right side
    30,243.44x = 575,717,565.77
  5. Step 5: Solve for x
    x = 575,717,565.77/30,243.44
  6. Step 6: Final answer
    x = 19,036.11

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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.