Home / 30,746.43-42,422.79-17,315.01

Finding the Fourth Proportional to 30,746.43, 42,422.79 and 17,315.01

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Solution

The fourth proportional to 30,746.43, 42,422.79 and 17,315.01 is: 23,890.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,746.43 : 42,422.79 = 17,315.01 : x
  2. Step 2: Convert to fraction form
    30,746.43/42,422.79 = 17,315.01/x
  3. Step 3: Cross multiply
    30,746.43x = 42,422.79 × 17,315.01
  4. Step 4: Simplify right side
    30,746.43x = 734,551,033.08
  5. Step 5: Solve for x
    x = 734,551,033.08/30,746.43
  6. Step 6: Final answer
    x = 23,890.61

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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.