Home / 31,642.55-47,463.86-12,922.58

Finding the Fourth Proportional to 31,642.55, 47,463.86 and 12,922.58

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Solution

The fourth proportional to 31,642.55, 47,463.86 and 12,922.58 is: 19,383.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,642.55 : 47,463.86 = 12,922.58 : x
  2. Step 2: Convert to fraction form
    31,642.55/47,463.86 = 12,922.58/x
  3. Step 3: Cross multiply
    31,642.55x = 47,463.86 × 12,922.58
  4. Step 4: Simplify right side
    31,642.55x = 613,355,290.64
  5. Step 5: Solve for x
    x = 613,355,290.64/31,642.55
  6. Step 6: Final answer
    x = 19,383.88

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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.