Home / 31,818.80-47,728.20-16,072.40

Finding the Fourth Proportional to 31,818.80, 47,728.20 and 16,072.40

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Solution

The fourth proportional to 31,818.80, 47,728.20 and 16,072.40 is: 24,108.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,818.80 : 47,728.20 = 16,072.40 : x
  2. Step 2: Convert to fraction form
    31,818.80/47,728.20 = 16,072.40/x
  3. Step 3: Cross multiply
    31,818.80x = 47,728.20 × 16,072.40
  4. Step 4: Simplify right side
    31,818.80x = 767,106,721.68
  5. Step 5: Solve for x
    x = 767,106,721.68/31,818.80
  6. Step 6: Final answer
    x = 24,108.60

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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.