Home / 31,895.04-47,790.72-18,759.36

Finding the Fourth Proportional to 31,895.04, 47,790.72 and 18,759.36

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Solution

The fourth proportional to 31,895.04, 47,790.72 and 18,759.36 is: 28,108.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,895.04 : 47,790.72 = 18,759.36 : x
  2. Step 2: Convert to fraction form
    31,895.04/47,790.72 = 18,759.36/x
  3. Step 3: Cross multiply
    31,895.04x = 47,790.72 × 18,759.36
  4. Step 4: Simplify right side
    31,895.04x = 896,523,321.14
  5. Step 5: Solve for x
    x = 896,523,321.14/31,895.04
  6. Step 6: Final answer
    x = 28,108.55

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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.