Home / 20,573.30-28,391.70-11,622.12

Finding the Fourth Proportional to 20,573.30, 28,391.70 and 11,622.12

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Solution

The fourth proportional to 20,573.30, 28,391.70 and 11,622.12 is: 16,038.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,573.30 : 28,391.70 = 11,622.12 : x
  2. Step 2: Convert to fraction form
    20,573.30/28,391.70 = 11,622.12/x
  3. Step 3: Cross multiply
    20,573.30x = 28,391.70 × 11,622.12
  4. Step 4: Simplify right side
    20,573.30x = 329,971,744.40
  5. Step 5: Solve for x
    x = 329,971,744.40/20,573.30
  6. Step 6: Final answer
    x = 16,038.84

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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.