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Finding the Fourth Proportional to 31,326.70, 46,990.06 and 12,601.12

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Solution

The fourth proportional to 31,326.70, 46,990.06 and 12,601.12 is: 18,901.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,326.70 : 46,990.06 = 12,601.12 : x
  2. Step 2: Convert to fraction form
    31,326.70/46,990.06 = 12,601.12/x
  3. Step 3: Cross multiply
    31,326.70x = 46,990.06 × 12,601.12
  4. Step 4: Simplify right side
    31,326.70x = 592,127,384.87
  5. Step 5: Solve for x
    x = 592,127,384.87/31,326.70
  6. Step 6: Final answer
    x = 18,901.68

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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.