Home / 21,921.52-32,893.08-13,599.40

Finding the Fourth Proportional to 21,921.52, 32,893.08 and 13,599.40

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Solution

The fourth proportional to 21,921.52, 32,893.08 and 13,599.40 is: 20,405.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,921.52 : 32,893.08 = 13,599.40 : x
  2. Step 2: Convert to fraction form
    21,921.52/32,893.08 = 13,599.40/x
  3. Step 3: Cross multiply
    21,921.52x = 32,893.08 × 13,599.40
  4. Step 4: Simplify right side
    21,921.52x = 447,326,152.15
  5. Step 5: Solve for x
    x = 447,326,152.15/21,921.52
  6. Step 6: Final answer
    x = 20,405.80

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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.