Home / 31,585.77-47,350.73-12,881.45

Finding the Fourth Proportional to 31,585.77, 47,350.73 and 12,881.45

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Solution

The fourth proportional to 31,585.77, 47,350.73 and 12,881.45 is: 19,310.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,585.77 : 47,350.73 = 12,881.45 : x
  2. Step 2: Convert to fraction form
    31,585.77/47,350.73 = 12,881.45/x
  3. Step 3: Cross multiply
    31,585.77x = 47,350.73 × 12,881.45
  4. Step 4: Simplify right side
    31,585.77x = 609,945,759.80
  5. Step 5: Solve for x
    x = 609,945,759.80/31,585.77
  6. Step 6: Final answer
    x = 19,310.78

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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.