Home / 31,288.32-46,939.44-13,519.20

Finding the Fourth Proportional to 31,288.32, 46,939.44 and 13,519.20

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Solution

The fourth proportional to 31,288.32, 46,939.44 and 13,519.20 is: 20,281.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,288.32 : 46,939.44 = 13,519.20 : x
  2. Step 2: Convert to fraction form
    31,288.32/46,939.44 = 13,519.20/x
  3. Step 3: Cross multiply
    31,288.32x = 46,939.44 × 13,519.20
  4. Step 4: Simplify right side
    31,288.32x = 634,583,677.25
  5. Step 5: Solve for x
    x = 634,583,677.25/31,288.32
  6. Step 6: Final answer
    x = 20,281.81

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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.