Home / 30,508.16-42,094-18,571.36

Finding the Fourth Proportional to 30,508.16, 42,094 and 18,571.36

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Solution

The fourth proportional to 30,508.16, 42,094 and 18,571.36 is: 25,624.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,508.16 : 42,094 = 18,571.36 : x
  2. Step 2: Convert to fraction form
    30,508.16/42,094 = 18,571.36/x
  3. Step 3: Cross multiply
    30,508.16x = 42,094 × 18,571.36
  4. Step 4: Simplify right side
    30,508.16x = 781,742,827.84
  5. Step 5: Solve for x
    x = 781,742,827.84/30,508.16
  6. Step 6: Final answer
    x = 25,624.06

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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.