Home / 21,293.46-29,385.52-11,862.23

Finding the Fourth Proportional to 21,293.46, 29,385.52 and 11,862.23

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Solution

The fourth proportional to 21,293.46, 29,385.52 and 11,862.23 is: 16,370.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,293.46 : 29,385.52 = 11,862.23 : x
  2. Step 2: Convert to fraction form
    21,293.46/29,385.52 = 11,862.23/x
  3. Step 3: Cross multiply
    21,293.46x = 29,385.52 × 11,862.23
  4. Step 4: Simplify right side
    21,293.46x = 348,577,620.33
  5. Step 5: Solve for x
    x = 348,577,620.33/21,293.46
  6. Step 6: Final answer
    x = 16,370.17

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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.