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Finding the Fourth Proportional to 30,405.83, 45,597.12 and 14,606.47

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Solution

The fourth proportional to 30,405.83, 45,597.12 and 14,606.47 is: 21,904.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,405.83 : 45,597.12 = 14,606.47 : x
  2. Step 2: Convert to fraction form
    30,405.83/45,597.12 = 14,606.47/x
  3. Step 3: Cross multiply
    30,405.83x = 45,597.12 × 14,606.47
  4. Step 4: Simplify right side
    30,405.83x = 666,012,796.60
  5. Step 5: Solve for x
    x = 666,012,796.60/30,405.83
  6. Step 6: Final answer
    x = 21,904.11

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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.