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Finding the Fourth Proportional to 30,446.69, 45,606.24 and 19,347.66

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Solution

The fourth proportional to 30,446.69, 45,606.24 and 19,347.66 is: 28,980.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,446.69 : 45,606.24 = 19,347.66 : x
  2. Step 2: Convert to fraction form
    30,446.69/45,606.24 = 19,347.66/x
  3. Step 3: Cross multiply
    30,446.69x = 45,606.24 × 19,347.66
  4. Step 4: Simplify right side
    30,446.69x = 882,374,025.40
  5. Step 5: Solve for x
    x = 882,374,025.40/30,446.69
  6. Step 6: Final answer
    x = 28,980.96

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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.