Home / 31,990.60-47,964.30-16,395.40

Finding the Fourth Proportional to 31,990.60, 47,964.30 and 16,395.40

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Solution

The fourth proportional to 31,990.60, 47,964.30 and 16,395.40 is: 24,582.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,990.60 : 47,964.30 = 16,395.40 : x
  2. Step 2: Convert to fraction form
    31,990.60/47,964.30 = 16,395.40/x
  3. Step 3: Cross multiply
    31,990.60x = 47,964.30 × 16,395.40
  4. Step 4: Simplify right side
    31,990.60x = 786,393,884.22
  5. Step 5: Solve for x
    x = 786,393,884.22/31,990.60
  6. Step 6: Final answer
    x = 24,582.03

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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.