Home / 31,991.64-47,987.46-16,399.32

Finding the Fourth Proportional to 31,991.64, 47,987.46 and 16,399.32

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Solution

The fourth proportional to 31,991.64, 47,987.46 and 16,399.32 is: 24,598.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,991.64 : 47,987.46 = 16,399.32 : x
  2. Step 2: Convert to fraction form
    31,991.64/47,987.46 = 16,399.32/x
  3. Step 3: Cross multiply
    31,991.64x = 47,987.46 × 16,399.32
  4. Step 4: Simplify right side
    31,991.64x = 786,961,712.53
  5. Step 5: Solve for x
    x = 786,961,712.53/31,991.64
  6. Step 6: Final answer
    x = 24,598.98

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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.