Home / 31,188.80-46,785.60-10,412.32

Finding the Fourth Proportional to 31,188.80, 46,785.60 and 10,412.32

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Solution

The fourth proportional to 31,188.80, 46,785.60 and 10,412.32 is: 15,619.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,188.80 : 46,785.60 = 10,412.32 : x
  2. Step 2: Convert to fraction form
    31,188.80/46,785.60 = 10,412.32/x
  3. Step 3: Cross multiply
    31,188.80x = 46,785.60 × 10,412.32
  4. Step 4: Simplify right side
    31,188.80x = 487,146,638.59
  5. Step 5: Solve for x
    x = 487,146,638.59/31,188.80
  6. Step 6: Final answer
    x = 15,619.28

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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.