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Finding the Fourth Proportional to 30,055.94, 45,065.90 and 14,264.90

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Solution

The fourth proportional to 30,055.94, 45,065.90 and 14,264.90 is: 21,388.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,055.94 : 45,065.90 = 14,264.90 : x
  2. Step 2: Convert to fraction form
    30,055.94/45,065.90 = 14,264.90/x
  3. Step 3: Cross multiply
    30,055.94x = 45,065.90 × 14,264.90
  4. Step 4: Simplify right side
    30,055.94x = 642,860,556.91
  5. Step 5: Solve for x
    x = 642,860,556.91/30,055.94
  6. Step 6: Final answer
    x = 21,388.80

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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.