Home / 21,078.11-29,033.27-14,693.31

Finding the Fourth Proportional to 21,078.11, 29,033.27 and 14,693.31

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Solution

The fourth proportional to 21,078.11, 29,033.27 and 14,693.31 is: 20,238.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,078.11 : 29,033.27 = 14,693.31 : x
  2. Step 2: Convert to fraction form
    21,078.11/29,033.27 = 14,693.31/x
  3. Step 3: Cross multiply
    21,078.11x = 29,033.27 × 14,693.31
  4. Step 4: Simplify right side
    21,078.11x = 426,594,762.96
  5. Step 5: Solve for x
    x = 426,594,762.96/21,078.11
  6. Step 6: Final answer
    x = 20,238.76

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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.