Home / 31,188.78-46,785.54-10,412.28

Finding the Fourth Proportional to 31,188.78, 46,785.54 and 10,412.28

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Solution

The fourth proportional to 31,188.78, 46,785.54 and 10,412.28 is: 15,619.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,188.78 : 46,785.54 = 10,412.28 : x
  2. Step 2: Convert to fraction form
    31,188.78/46,785.54 = 10,412.28/x
  3. Step 3: Cross multiply
    31,188.78x = 46,785.54 × 10,412.28
  4. Step 4: Simplify right side
    31,188.78x = 487,144,142.43
  5. Step 5: Solve for x
    x = 487,144,142.43/31,188.78
  6. Step 6: Final answer
    x = 15,619.21

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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.