Home / 31,009.64-46,460.96-16,979.78

Finding the Fourth Proportional to 31,009.64, 46,460.96 and 16,979.78

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Solution

The fourth proportional to 31,009.64, 46,460.96 and 16,979.78 is: 25,440.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,009.64 : 46,460.96 = 16,979.78 : x
  2. Step 2: Convert to fraction form
    31,009.64/46,460.96 = 16,979.78/x
  3. Step 3: Cross multiply
    31,009.64x = 46,460.96 × 16,979.78
  4. Step 4: Simplify right side
    31,009.64x = 788,896,879.39
  5. Step 5: Solve for x
    x = 788,896,879.39/31,009.64
  6. Step 6: Final answer
    x = 25,440.38

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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.