Home / 30,931.36-46,392.72-13,169.14

Finding the Fourth Proportional to 30,931.36, 46,392.72 and 13,169.14

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Solution

The fourth proportional to 30,931.36, 46,392.72 and 13,169.14 is: 19,751.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,931.36 : 46,392.72 = 13,169.14 : x
  2. Step 2: Convert to fraction form
    30,931.36/46,392.72 = 13,169.14/x
  3. Step 3: Cross multiply
    30,931.36x = 46,392.72 × 13,169.14
  4. Step 4: Simplify right side
    30,931.36x = 610,952,224.66
  5. Step 5: Solve for x
    x = 610,952,224.66/30,931.36
  6. Step 6: Final answer
    x = 19,751.87

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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.