Home / 20,738.02-28,622.55-14,446.75

Finding the Fourth Proportional to 20,738.02, 28,622.55 and 14,446.75

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Solution

The fourth proportional to 20,738.02, 28,622.55 and 14,446.75 is: 19,939.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,738.02 : 28,622.55 = 14,446.75 : x
  2. Step 2: Convert to fraction form
    20,738.02/28,622.55 = 14,446.75/x
  3. Step 3: Cross multiply
    20,738.02x = 28,622.55 × 14,446.75
  4. Step 4: Simplify right side
    20,738.02x = 413,502,824.21
  5. Step 5: Solve for x
    x = 413,502,824.21/20,738.02
  6. Step 6: Final answer
    x = 19,939.36

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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.