Home / 31,688.88-43,731-17,541.96

Finding the Fourth Proportional to 31,688.88, 43,731 and 17,541.96

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Solution

The fourth proportional to 31,688.88, 43,731 and 17,541.96 is: 24,208.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,688.88 : 43,731 = 17,541.96 : x
  2. Step 2: Convert to fraction form
    31,688.88/43,731 = 17,541.96/x
  3. Step 3: Cross multiply
    31,688.88x = 43,731 × 17,541.96
  4. Step 4: Simplify right side
    31,688.88x = 767,127,452.76
  5. Step 5: Solve for x
    x = 767,127,452.76/31,688.88
  6. Step 6: Final answer
    x = 24,208.10

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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.