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Finding the Fourth Proportional to 30,199.64, 45,300.40 and 14,406.39

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Solution

The fourth proportional to 30,199.64, 45,300.40 and 14,406.39 is: 21,610.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,199.64 : 45,300.40 = 14,406.39 : x
  2. Step 2: Convert to fraction form
    30,199.64/45,300.40 = 14,406.39/x
  3. Step 3: Cross multiply
    30,199.64x = 45,300.40 × 14,406.39
  4. Step 4: Simplify right side
    30,199.64x = 652,615,193.54
  5. Step 5: Solve for x
    x = 652,615,193.54/30,199.64
  6. Step 6: Final answer
    x = 21,610.04

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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.