Home / 31,126.60-42,954.42-19,185.16

Finding the Fourth Proportional to 31,126.60, 42,954.42 and 19,185.16

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Solution

The fourth proportional to 31,126.60, 42,954.42 and 19,185.16 is: 26,475.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,126.60 : 42,954.42 = 19,185.16 : x
  2. Step 2: Convert to fraction form
    31,126.60/42,954.42 = 19,185.16/x
  3. Step 3: Cross multiply
    31,126.60x = 42,954.42 × 19,185.16
  4. Step 4: Simplify right side
    31,126.60x = 824,087,420.41
  5. Step 5: Solve for x
    x = 824,087,420.41/31,126.60
  6. Step 6: Final answer
    x = 26,475.34

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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.