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Finding the Fourth Proportional to 30,434.40, 45,650.96 and 14,018.40

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Solution

The fourth proportional to 30,434.40, 45,650.96 and 14,018.40 is: 21,027.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,434.40 : 45,650.96 = 14,018.40 : x
  2. Step 2: Convert to fraction form
    30,434.40/45,650.96 = 14,018.40/x
  3. Step 3: Cross multiply
    30,434.40x = 45,650.96 × 14,018.40
  4. Step 4: Simplify right side
    30,434.40x = 639,953,417.66
  5. Step 5: Solve for x
    x = 639,953,417.66/30,434.40
  6. Step 6: Final answer
    x = 21,027.31

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.