Home / 31,178.04-46,736.27-12,446.79

Finding the Fourth Proportional to 31,178.04, 46,736.27 and 12,446.79

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Solution

The fourth proportional to 31,178.04, 46,736.27 and 12,446.79 is: 18,657.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,178.04 : 46,736.27 = 12,446.79 : x
  2. Step 2: Convert to fraction form
    31,178.04/46,736.27 = 12,446.79/x
  3. Step 3: Cross multiply
    31,178.04x = 46,736.27 × 12,446.79
  4. Step 4: Simplify right side
    31,178.04x = 581,716,538.07
  5. Step 5: Solve for x
    x = 581,716,538.07/31,178.04
  6. Step 6: Final answer
    x = 18,657.89

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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.