Home / 30,756.81-42,439.26-17,141.88

Finding the Fourth Proportional to 30,756.81, 42,439.26 and 17,141.88

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Solution

The fourth proportional to 30,756.81, 42,439.26 and 17,141.88 is: 23,652.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,756.81 : 42,439.26 = 17,141.88 : x
  2. Step 2: Convert to fraction form
    30,756.81/42,439.26 = 17,141.88/x
  3. Step 3: Cross multiply
    30,756.81x = 42,439.26 × 17,141.88
  4. Step 4: Simplify right side
    30,756.81x = 727,488,702.21
  5. Step 5: Solve for x
    x = 727,488,702.21/30,756.81
  6. Step 6: Final answer
    x = 23,652.93

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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.