Home / 31,457.98-47,165.10-11,731.24

Finding the Fourth Proportional to 31,457.98, 47,165.10 and 11,731.24

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Solution

The fourth proportional to 31,457.98, 47,165.10 and 11,731.24 is: 17,588.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,457.98 : 47,165.10 = 11,731.24 : x
  2. Step 2: Convert to fraction form
    31,457.98/47,165.10 = 11,731.24/x
  3. Step 3: Cross multiply
    31,457.98x = 47,165.10 × 11,731.24
  4. Step 4: Simplify right side
    31,457.98x = 553,305,107.72
  5. Step 5: Solve for x
    x = 553,305,107.72/31,457.98
  6. Step 6: Final answer
    x = 17,588.70

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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.