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Finding the Fourth Proportional to 30,113.84, 45,166.92 and 7,928.93

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Solution

The fourth proportional to 30,113.84, 45,166.92 and 7,928.93 is: 11,892.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,113.84 : 45,166.92 = 7,928.93 : x
  2. Step 2: Convert to fraction form
    30,113.84/45,166.92 = 7,928.93/x
  3. Step 3: Cross multiply
    30,113.84x = 45,166.92 × 7,928.93
  4. Step 4: Simplify right side
    30,113.84x = 358,125,121.16
  5. Step 5: Solve for x
    x = 358,125,121.16/30,113.84
  6. Step 6: Final answer
    x = 11,892.38

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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.