Home / 22,715.19-31,347.30-12,644.07

Finding the Fourth Proportional to 22,715.19, 31,347.30 and 12,644.07

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Solution

The fourth proportional to 22,715.19, 31,347.30 and 12,644.07 is: 17,449.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,715.19 : 31,347.30 = 12,644.07 : x
  2. Step 2: Convert to fraction form
    22,715.19/31,347.30 = 12,644.07/x
  3. Step 3: Cross multiply
    22,715.19x = 31,347.30 × 12,644.07
  4. Step 4: Simplify right side
    22,715.19x = 396,357,455.51
  5. Step 5: Solve for x
    x = 396,357,455.51/22,715.19
  6. Step 6: Final answer
    x = 17,449.00

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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.