Home / 21,754.60-32,588.70-12,963.40

Finding the Fourth Proportional to 21,754.60, 32,588.70 and 12,963.40

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Solution

The fourth proportional to 21,754.60, 32,588.70 and 12,963.40 is: 19,419.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,754.60 : 32,588.70 = 12,963.40 : x
  2. Step 2: Convert to fraction form
    21,754.60/32,588.70 = 12,963.40/x
  3. Step 3: Cross multiply
    21,754.60x = 32,588.70 × 12,963.40
  4. Step 4: Simplify right side
    21,754.60x = 422,460,353.58
  5. Step 5: Solve for x
    x = 422,460,353.58/21,754.60
  6. Step 6: Final answer
    x = 19,419.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.