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Finding the Fourth Proportional to 30,048.53, 45,073.95 and 8,988.87

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Solution

The fourth proportional to 30,048.53, 45,073.95 and 8,988.87 is: 13,483.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,048.53 : 45,073.95 = 8,988.87 : x
  2. Step 2: Convert to fraction form
    30,048.53/45,073.95 = 8,988.87/x
  3. Step 3: Cross multiply
    30,048.53x = 45,073.95 × 8,988.87
  4. Step 4: Simplify right side
    30,048.53x = 405,163,831.99
  5. Step 5: Solve for x
    x = 405,163,831.99/30,048.53
  6. Step 6: Final answer
    x = 13,483.65

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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.