Home / 30,856.14-42,576.03-18,110.79

Finding the Fourth Proportional to 30,856.14, 42,576.03 and 18,110.79

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Solution

The fourth proportional to 30,856.14, 42,576.03 and 18,110.79 is: 24,989.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,856.14 : 42,576.03 = 18,110.79 : x
  2. Step 2: Convert to fraction form
    30,856.14/42,576.03 = 18,110.79/x
  3. Step 3: Cross multiply
    30,856.14x = 42,576.03 × 18,110.79
  4. Step 4: Simplify right side
    30,856.14x = 771,085,538.36
  5. Step 5: Solve for x
    x = 771,085,538.36/30,856.14
  6. Step 6: Final answer
    x = 24,989.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.