Home / 20,734.45-28,613.63-11,303.01

Finding the Fourth Proportional to 20,734.45, 28,613.63 and 11,303.01

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Solution

The fourth proportional to 20,734.45, 28,613.63 and 11,303.01 is: 15,598.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,734.45 : 28,613.63 = 11,303.01 : x
  2. Step 2: Convert to fraction form
    20,734.45/28,613.63 = 11,303.01/x
  3. Step 3: Cross multiply
    20,734.45x = 28,613.63 × 11,303.01
  4. Step 4: Simplify right side
    20,734.45x = 323,420,174.28
  5. Step 5: Solve for x
    x = 323,420,174.28/20,734.45
  6. Step 6: Final answer
    x = 15,598.21

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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.