Home / 30,601.81-45,904.91-12,814.57

Finding the Fourth Proportional to 30,601.81, 45,904.91 and 12,814.57

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Solution

The fourth proportional to 30,601.81, 45,904.91 and 12,814.57 is: 19,222.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,601.81 : 45,904.91 = 12,814.57 : x
  2. Step 2: Convert to fraction form
    30,601.81/45,904.91 = 12,814.57/x
  3. Step 3: Cross multiply
    30,601.81x = 45,904.91 × 12,814.57
  4. Step 4: Simplify right side
    30,601.81x = 588,251,682.54
  5. Step 5: Solve for x
    x = 588,251,682.54/30,601.81
  6. Step 6: Final answer
    x = 19,222.77

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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.