Home / 21,285.51-29,374.05-12,334.74

Finding the Fourth Proportional to 21,285.51, 29,374.05 and 12,334.74

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Solution

The fourth proportional to 21,285.51, 29,374.05 and 12,334.74 is: 17,021.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,285.51 : 29,374.05 = 12,334.74 : x
  2. Step 2: Convert to fraction form
    21,285.51/29,374.05 = 12,334.74/x
  3. Step 3: Cross multiply
    21,285.51x = 29,374.05 × 12,334.74
  4. Step 4: Simplify right side
    21,285.51x = 362,321,269.50
  5. Step 5: Solve for x
    x = 362,321,269.50/21,285.51
  6. Step 6: Final answer
    x = 17,021.97

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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.