Home / 21,957.60-32,893.20-13,166.40

Finding the Fourth Proportional to 21,957.60, 32,893.20 and 13,166.40

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Solution

The fourth proportional to 21,957.60, 32,893.20 and 13,166.40 is: 19,723.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,957.60 : 32,893.20 = 13,166.40 : x
  2. Step 2: Convert to fraction form
    21,957.60/32,893.20 = 13,166.40/x
  3. Step 3: Cross multiply
    21,957.60x = 32,893.20 × 13,166.40
  4. Step 4: Simplify right side
    21,957.60x = 433,085,028.48
  5. Step 5: Solve for x
    x = 433,085,028.48/21,957.60
  6. Step 6: Final answer
    x = 19,723.70

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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.