Home / 21,966.30-32,904.65-13,620.70

Finding the Fourth Proportional to 21,966.30, 32,904.65 and 13,620.70

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Solution

The fourth proportional to 21,966.30, 32,904.65 and 13,620.70 is: 20,403.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,966.30 : 32,904.65 = 13,620.70 : x
  2. Step 2: Convert to fraction form
    21,966.30/32,904.65 = 13,620.70/x
  3. Step 3: Cross multiply
    21,966.30x = 32,904.65 × 13,620.70
  4. Step 4: Simplify right side
    21,966.30x = 448,184,366.26
  5. Step 5: Solve for x
    x = 448,184,366.26/21,966.30
  6. Step 6: Final answer
    x = 20,403.27

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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.