Home / 31,439.07-47,157.92-14,789.88

Finding the Fourth Proportional to 31,439.07, 47,157.92 and 14,789.88

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Solution

The fourth proportional to 31,439.07, 47,157.92 and 14,789.88 is: 22,184.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,439.07 : 47,157.92 = 14,789.88 : x
  2. Step 2: Convert to fraction form
    31,439.07/47,157.92 = 14,789.88/x
  3. Step 3: Cross multiply
    31,439.07x = 47,157.92 × 14,789.88
  4. Step 4: Simplify right side
    31,439.07x = 697,459,977.85
  5. Step 5: Solve for x
    x = 697,459,977.85/31,439.07
  6. Step 6: Final answer
    x = 22,184.50

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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.