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Finding the Fourth Proportional to 30,604.63, 45,870.03 and 15,805.46

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Solution

The fourth proportional to 30,604.63, 45,870.03 and 15,805.46 is: 23,689.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,604.63 : 45,870.03 = 15,805.46 : x
  2. Step 2: Convert to fraction form
    30,604.63/45,870.03 = 15,805.46/x
  3. Step 3: Cross multiply
    30,604.63x = 45,870.03 × 15,805.46
  4. Step 4: Simplify right side
    30,604.63x = 724,996,924.36
  5. Step 5: Solve for x
    x = 724,996,924.36/30,604.63
  6. Step 6: Final answer
    x = 23,689.13

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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.