Home / 21,554.39-32,318.69-8,391.35

Finding the Fourth Proportional to 21,554.39, 32,318.69 and 8,391.35

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Solution

The fourth proportional to 21,554.39, 32,318.69 and 8,391.35 is: 12,582.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,554.39 : 32,318.69 = 8,391.35 : x
  2. Step 2: Convert to fraction form
    21,554.39/32,318.69 = 8,391.35/x
  3. Step 3: Cross multiply
    21,554.39x = 32,318.69 × 8,391.35
  4. Step 4: Simplify right side
    21,554.39x = 271,197,235.78
  5. Step 5: Solve for x
    x = 271,197,235.78/21,554.39
  6. Step 6: Final answer
    x = 12,582.00

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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.