Home / 31,406.34-47,103.70-14,305.19

Finding the Fourth Proportional to 31,406.34, 47,103.70 and 14,305.19

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Solution

The fourth proportional to 31,406.34, 47,103.70 and 14,305.19 is: 21,455.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,406.34 : 47,103.70 = 14,305.19 : x
  2. Step 2: Convert to fraction form
    31,406.34/47,103.70 = 14,305.19/x
  3. Step 3: Cross multiply
    31,406.34x = 47,103.70 × 14,305.19
  4. Step 4: Simplify right side
    31,406.34x = 673,827,490.95
  5. Step 5: Solve for x
    x = 673,827,490.95/31,406.34
  6. Step 6: Final answer
    x = 21,455.14

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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.