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Finding the Fourth Proportional to 30,446.36, 45,646.04 and 19,329.92

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Solution

The fourth proportional to 30,446.36, 45,646.04 and 19,329.92 is: 28,979.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,446.36 : 45,646.04 = 19,329.92 : x
  2. Step 2: Convert to fraction form
    30,446.36/45,646.04 = 19,329.92/x
  3. Step 3: Cross multiply
    30,446.36x = 45,646.04 × 19,329.92
  4. Step 4: Simplify right side
    30,446.36x = 882,334,301.52
  5. Step 5: Solve for x
    x = 882,334,301.52/30,446.36
  6. Step 6: Final answer
    x = 28,979.96

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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.