Home / 21,770.24-30,043.12-12,337.04

Finding the Fourth Proportional to 21,770.24, 30,043.12 and 12,337.04

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Solution

The fourth proportional to 21,770.24, 30,043.12 and 12,337.04 is: 17,025.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,770.24 : 30,043.12 = 12,337.04 : x
  2. Step 2: Convert to fraction form
    21,770.24/30,043.12 = 12,337.04/x
  3. Step 3: Cross multiply
    21,770.24x = 30,043.12 × 12,337.04
  4. Step 4: Simplify right side
    21,770.24x = 370,643,173.16
  5. Step 5: Solve for x
    x = 370,643,173.16/21,770.24
  6. Step 6: Final answer
    x = 17,025.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.