Home / 31,391.80-47,037.30-16,581.40

Finding the Fourth Proportional to 31,391.80, 47,037.30 and 16,581.40

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Solution

The fourth proportional to 31,391.80, 47,037.30 and 16,581.40 is: 24,845.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,391.80 : 47,037.30 = 16,581.40 : x
  2. Step 2: Convert to fraction form
    31,391.80/47,037.30 = 16,581.40/x
  3. Step 3: Cross multiply
    31,391.80x = 47,037.30 × 16,581.40
  4. Step 4: Simplify right side
    31,391.80x = 779,944,286.22
  5. Step 5: Solve for x
    x = 779,944,286.22/31,391.80
  6. Step 6: Final answer
    x = 24,845.48

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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.