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Finding the Fourth Proportional to 30,344.93, 45,457.32 and 14,312.51

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Solution

The fourth proportional to 30,344.93, 45,457.32 and 14,312.51 is: 21,440.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,344.93 : 45,457.32 = 14,312.51 : x
  2. Step 2: Convert to fraction form
    30,344.93/45,457.32 = 14,312.51/x
  3. Step 3: Cross multiply
    30,344.93x = 45,457.32 × 14,312.51
  4. Step 4: Simplify right side
    30,344.93x = 650,608,347.07
  5. Step 5: Solve for x
    x = 650,608,347.07/30,344.93
  6. Step 6: Final answer
    x = 21,440.43

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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.