Home / 19,519.64-29,279.47-4,728.57

Finding the Fourth Proportional to 19,519.64, 29,279.47 and 4,728.57

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Solution

The fourth proportional to 19,519.64, 29,279.47 and 4,728.57 is: 7,092.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,519.64 : 29,279.47 = 4,728.57 : x
  2. Step 2: Convert to fraction form
    19,519.64/29,279.47 = 4,728.57/x
  3. Step 3: Cross multiply
    19,519.64x = 29,279.47 × 4,728.57
  4. Step 4: Simplify right side
    19,519.64x = 138,450,023.46
  5. Step 5: Solve for x
    x = 138,450,023.46/19,519.64
  6. Step 6: Final answer
    x = 7,092.86

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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.