Home / 31,487.74-47,238.90-10,426.96

Finding the Fourth Proportional to 31,487.74, 47,238.90 and 10,426.96

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Solution

The fourth proportional to 31,487.74, 47,238.90 and 10,426.96 is: 15,642.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,487.74 : 47,238.90 = 10,426.96 : x
  2. Step 2: Convert to fraction form
    31,487.74/47,238.90 = 10,426.96/x
  3. Step 3: Cross multiply
    31,487.74x = 47,238.90 × 10,426.96
  4. Step 4: Simplify right side
    31,487.74x = 492,558,120.74
  5. Step 5: Solve for x
    x = 492,558,120.74/31,487.74
  6. Step 6: Final answer
    x = 15,642.85

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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.