Home / 31,689.79-47,581.41-17,677.19

Finding the Fourth Proportional to 31,689.79, 47,581.41 and 17,677.19

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Solution

The fourth proportional to 31,689.79, 47,581.41 and 17,677.19 is: 26,541.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,689.79 : 47,581.41 = 17,677.19 : x
  2. Step 2: Convert to fraction form
    31,689.79/47,581.41 = 17,677.19/x
  3. Step 3: Cross multiply
    31,689.79x = 47,581.41 × 17,677.19
  4. Step 4: Simplify right side
    31,689.79x = 841,105,536.65
  5. Step 5: Solve for x
    x = 841,105,536.65/31,689.79
  6. Step 6: Final answer
    x = 26,541.85

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.