Home / 20,004.64-29,990.72-8,326.56

Finding the Fourth Proportional to 20,004.64, 29,990.72 and 8,326.56

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Solution

The fourth proportional to 20,004.64, 29,990.72 and 8,326.56 is: 12,483.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,004.64 : 29,990.72 = 8,326.56 : x
  2. Step 2: Convert to fraction form
    20,004.64/29,990.72 = 8,326.56/x
  3. Step 3: Cross multiply
    20,004.64x = 29,990.72 × 8,326.56
  4. Step 4: Simplify right side
    20,004.64x = 249,719,529.52
  5. Step 5: Solve for x
    x = 249,719,529.52/20,004.64
  6. Step 6: Final answer
    x = 12,483.08

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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.