Home / 31,688.24-47,515.98-13,911.62

Finding the Fourth Proportional to 31,688.24, 47,515.98 and 13,911.62

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Solution

The fourth proportional to 31,688.24, 47,515.98 and 13,911.62 is: 20,860.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,688.24 : 47,515.98 = 13,911.62 : x
  2. Step 2: Convert to fraction form
    31,688.24/47,515.98 = 13,911.62/x
  3. Step 3: Cross multiply
    31,688.24x = 47,515.98 × 13,911.62
  4. Step 4: Simplify right side
    31,688.24x = 661,024,257.69
  5. Step 5: Solve for x
    x = 661,024,257.69/31,688.24
  6. Step 6: Final answer
    x = 20,860.24

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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.