Home / 31,558.80-47,338.20-15,974.40

Finding the Fourth Proportional to 31,558.80, 47,338.20 and 15,974.40

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Solution

The fourth proportional to 31,558.80, 47,338.20 and 15,974.40 is: 23,961.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,558.80 : 47,338.20 = 15,974.40 : x
  2. Step 2: Convert to fraction form
    31,558.80/47,338.20 = 15,974.40/x
  3. Step 3: Cross multiply
    31,558.80x = 47,338.20 × 15,974.40
  4. Step 4: Simplify right side
    31,558.80x = 756,199,342.08
  5. Step 5: Solve for x
    x = 756,199,342.08/31,558.80
  6. Step 6: Final answer
    x = 23,961.60

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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.