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Finding the Fourth Proportional to 30,030.64, 44,978.28 and 14,459.92

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Solution

The fourth proportional to 30,030.64, 44,978.28 and 14,459.92 is: 21,657.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,030.64 : 44,978.28 = 14,459.92 : x
  2. Step 2: Convert to fraction form
    30,030.64/44,978.28 = 14,459.92/x
  3. Step 3: Cross multiply
    30,030.64x = 44,978.28 × 14,459.92
  4. Step 4: Simplify right side
    30,030.64x = 650,382,330.54
  5. Step 5: Solve for x
    x = 650,382,330.54/30,030.64
  6. Step 6: Final answer
    x = 21,657.29

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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.