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Finding the Fourth Proportional to 32,830.81, 45,304.65 and 19,403.31

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Solution

The fourth proportional to 32,830.81, 45,304.65 and 19,403.31 is: 26,775.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,830.81 : 45,304.65 = 19,403.31 : x
  2. Step 2: Convert to fraction form
    32,830.81/45,304.65 = 19,403.31/x
  3. Step 3: Cross multiply
    32,830.81x = 45,304.65 × 19,403.31
  4. Step 4: Simplify right side
    32,830.81x = 879,060,168.39
  5. Step 5: Solve for x
    x = 879,060,168.39/32,830.81
  6. Step 6: Final answer
    x = 26,775.46

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.