Home / 20,353.24-28,072.90-18,680.04

Finding the Fourth Proportional to 20,353.24, 28,072.90 and 18,680.04

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Solution

The fourth proportional to 20,353.24, 28,072.90 and 18,680.04 is: 25,765.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,353.24 : 28,072.90 = 18,680.04 : x
  2. Step 2: Convert to fraction form
    20,353.24/28,072.90 = 18,680.04/x
  3. Step 3: Cross multiply
    20,353.24x = 28,072.90 × 18,680.04
  4. Step 4: Simplify right side
    20,353.24x = 524,402,894.92
  5. Step 5: Solve for x
    x = 524,402,894.92/20,353.24
  6. Step 6: Final answer
    x = 25,765.08

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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.