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Finding the Fourth Proportional to 30,335, 45,489.18 and 15,332.90

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Solution

The fourth proportional to 30,335, 45,489.18 and 15,332.90 is: 22,992.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,335 : 45,489.18 = 15,332.90 : x
  2. Step 2: Convert to fraction form
    30,335/45,489.18 = 15,332.90/x
  3. Step 3: Cross multiply
    30,335x = 45,489.18 × 15,332.90
  4. Step 4: Simplify right side
    30,335x = 697,481,048.02
  5. Step 5: Solve for x
    x = 697,481,048.02/30,335
  6. Step 6: Final answer
    x = 22,992.62

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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.