Home / 19,538.94-29,308.04-4,747.74

Finding the Fourth Proportional to 19,538.94, 29,308.04 and 4,747.74

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Solution

The fourth proportional to 19,538.94, 29,308.04 and 4,747.74 is: 7,121.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,538.94 : 29,308.04 = 4,747.74 : x
  2. Step 2: Convert to fraction form
    19,538.94/29,308.04 = 4,747.74/x
  3. Step 3: Cross multiply
    19,538.94x = 29,308.04 × 4,747.74
  4. Step 4: Simplify right side
    19,538.94x = 139,146,953.83
  5. Step 5: Solve for x
    x = 139,146,953.83/19,538.94
  6. Step 6: Final answer
    x = 7,121.52

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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.