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Finding the Fourth Proportional to 21,246.59, 31,873.56 and 6,457.01

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Solution

The fourth proportional to 21,246.59, 31,873.56 and 6,457.01 is: 9,686.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,246.59 : 31,873.56 = 6,457.01 : x
  2. Step 2: Convert to fraction form
    21,246.59/31,873.56 = 6,457.01/x
  3. Step 3: Cross multiply
    21,246.59x = 31,873.56 × 6,457.01
  4. Step 4: Simplify right side
    21,246.59x = 205,807,895.66
  5. Step 5: Solve for x
    x = 205,807,895.66/21,246.59
  6. Step 6: Final answer
    x = 9,686.63

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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.