Home / 21,325.20-29,426.41-12,370.96

Finding the Fourth Proportional to 21,325.20, 29,426.41 and 12,370.96

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Solution

The fourth proportional to 21,325.20, 29,426.41 and 12,370.96 is: 17,070.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,325.20 : 29,426.41 = 12,370.96 : x
  2. Step 2: Convert to fraction form
    21,325.20/29,426.41 = 12,370.96/x
  3. Step 3: Cross multiply
    21,325.20x = 29,426.41 × 12,370.96
  4. Step 4: Simplify right side
    21,325.20x = 364,032,879.20
  5. Step 5: Solve for x
    x = 364,032,879.20/21,325.20
  6. Step 6: Final answer
    x = 17,070.55

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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.