Home / 31,313.16-46,984.91-13,780.71

Finding the Fourth Proportional to 31,313.16, 46,984.91 and 13,780.71

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Solution

The fourth proportional to 31,313.16, 46,984.91 and 13,780.71 is: 20,677.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,313.16 : 46,984.91 = 13,780.71 : x
  2. Step 2: Convert to fraction form
    31,313.16/46,984.91 = 13,780.71/x
  3. Step 3: Cross multiply
    31,313.16x = 46,984.91 × 13,780.71
  4. Step 4: Simplify right side
    31,313.16x = 647,485,419.09
  5. Step 5: Solve for x
    x = 647,485,419.09/31,313.16
  6. Step 6: Final answer
    x = 20,677.74

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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.