Home / 31,646.58-47,475.14-12,936.66

Finding the Fourth Proportional to 31,646.58, 47,475.14 and 12,936.66

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Solution

The fourth proportional to 31,646.58, 47,475.14 and 12,936.66 is: 19,407.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,646.58 : 47,475.14 = 12,936.66 : x
  2. Step 2: Convert to fraction form
    31,646.58/47,475.14 = 12,936.66/x
  3. Step 3: Cross multiply
    31,646.58x = 47,475.14 × 12,936.66
  4. Step 4: Simplify right side
    31,646.58x = 614,169,744.63
  5. Step 5: Solve for x
    x = 614,169,744.63/31,646.58
  6. Step 6: Final answer
    x = 19,407.14

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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.