Home / 31,318.41-43,219.35-17,172.17

Finding the Fourth Proportional to 31,318.41, 43,219.35 and 17,172.17

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Solution

The fourth proportional to 31,318.41, 43,219.35 and 17,172.17 is: 23,697.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,318.41 : 43,219.35 = 17,172.17 : x
  2. Step 2: Convert to fraction form
    31,318.41/43,219.35 = 17,172.17/x
  3. Step 3: Cross multiply
    31,318.41x = 43,219.35 × 17,172.17
  4. Step 4: Simplify right side
    31,318.41x = 742,169,809.39
  5. Step 5: Solve for x
    x = 742,169,809.39/31,318.41
  6. Step 6: Final answer
    x = 23,697.56

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1.5x scale

Why These Related Problems?

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