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Finding the Fourth Proportional to 30,299.51, 45,458.52 and 15,518.88

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Solution

The fourth proportional to 30,299.51, 45,458.52 and 15,518.88 is: 23,283.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,299.51 : 45,458.52 = 15,518.88 : x
  2. Step 2: Convert to fraction form
    30,299.51/45,458.52 = 15,518.88/x
  3. Step 3: Cross multiply
    30,299.51x = 45,458.52 × 15,518.88
  4. Step 4: Simplify right side
    30,299.51x = 705,465,316.86
  5. Step 5: Solve for x
    x = 705,465,316.86/30,299.51
  6. Step 6: Final answer
    x = 23,283.06

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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.