Home / 31,681.92-47,473.58-11,949.68

Finding the Fourth Proportional to 31,681.92, 47,473.58 and 11,949.68

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Solution

The fourth proportional to 31,681.92, 47,473.58 and 11,949.68 is: 17,905.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,681.92 : 47,473.58 = 11,949.68 : x
  2. Step 2: Convert to fraction form
    31,681.92/47,473.58 = 11,949.68/x
  3. Step 3: Cross multiply
    31,681.92x = 47,473.58 × 11,949.68
  4. Step 4: Simplify right side
    31,681.92x = 567,294,089.45
  5. Step 5: Solve for x
    x = 567,294,089.45/31,681.92
  6. Step 6: Final answer
    x = 17,905.93

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1.5x scale

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.