Home / 31,645.58-47,473.64-12,935.66

Finding the Fourth Proportional to 31,645.58, 47,473.64 and 12,935.66

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Solution

The fourth proportional to 31,645.58, 47,473.64 and 12,935.66 is: 19,405.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,645.58 : 47,473.64 = 12,935.66 : x
  2. Step 2: Convert to fraction form
    31,645.58/47,473.64 = 12,935.66/x
  3. Step 3: Cross multiply
    31,645.58x = 47,473.64 × 12,935.66
  4. Step 4: Simplify right side
    31,645.58x = 614,102,801.32
  5. Step 5: Solve for x
    x = 614,102,801.32/31,645.58
  6. Step 6: Final answer
    x = 19,405.64

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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.