Home / 21,391.48-32,087.58-5,808.70

Finding the Fourth Proportional to 21,391.48, 32,087.58 and 5,808.70

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Solution

The fourth proportional to 21,391.48, 32,087.58 and 5,808.70 is: 8,713.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,391.48 : 32,087.58 = 5,808.70 : x
  2. Step 2: Convert to fraction form
    21,391.48/32,087.58 = 5,808.70/x
  3. Step 3: Cross multiply
    21,391.48x = 32,087.58 × 5,808.70
  4. Step 4: Simplify right side
    21,391.48x = 186,387,125.95
  5. Step 5: Solve for x
    x = 186,387,125.95/21,391.48
  6. Step 6: Final answer
    x = 8,713.15

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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.