Home / 31,206.10-46,809.15-13,657.30

Finding the Fourth Proportional to 31,206.10, 46,809.15 and 13,657.30

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Solution

The fourth proportional to 31,206.10, 46,809.15 and 13,657.30 is: 20,485.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,206.10 : 46,809.15 = 13,657.30 : x
  2. Step 2: Convert to fraction form
    31,206.10/46,809.15 = 13,657.30/x
  3. Step 3: Cross multiply
    31,206.10x = 46,809.15 × 13,657.30
  4. Step 4: Simplify right side
    31,206.10x = 639,286,604.30
  5. Step 5: Solve for x
    x = 639,286,604.30/31,206.10
  6. Step 6: Final answer
    x = 20,485.95

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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.