Home / 31,142.73-46,716.80-8,957.91

Finding the Fourth Proportional to 31,142.73, 46,716.80 and 8,957.91

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Solution

The fourth proportional to 31,142.73, 46,716.80 and 8,957.91 is: 13,437.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,142.73 : 46,716.80 = 8,957.91 : x
  2. Step 2: Convert to fraction form
    31,142.73/46,716.80 = 8,957.91/x
  3. Step 3: Cross multiply
    31,142.73x = 46,716.80 × 8,957.91
  4. Step 4: Simplify right side
    31,142.73x = 418,484,845.10
  5. Step 5: Solve for x
    x = 418,484,845.10/31,142.73
  6. Step 6: Final answer
    x = 13,437.64

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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.