Home / 20,673.64-28,529.86-11,723.08

Finding the Fourth Proportional to 20,673.64, 28,529.86 and 11,723.08

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Solution

The fourth proportional to 20,673.64, 28,529.86 and 11,723.08 is: 16,177.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,673.64 : 28,529.86 = 11,723.08 : x
  2. Step 2: Convert to fraction form
    20,673.64/28,529.86 = 11,723.08/x
  3. Step 3: Cross multiply
    20,673.64x = 28,529.86 × 11,723.08
  4. Step 4: Simplify right side
    20,673.64x = 334,457,831.17
  5. Step 5: Solve for x
    x = 334,457,831.17/20,673.64
  6. Step 6: Final answer
    x = 16,177.98

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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.