Home / 31,677.71-47,529.83-13,899.20

Finding the Fourth Proportional to 31,677.71, 47,529.83 and 13,899.20

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Solution

The fourth proportional to 31,677.71, 47,529.83 and 13,899.20 is: 20,854.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,677.71 : 47,529.83 = 13,899.20 : x
  2. Step 2: Convert to fraction form
    31,677.71/47,529.83 = 13,899.20/x
  3. Step 3: Cross multiply
    31,677.71x = 47,529.83 × 13,899.20
  4. Step 4: Simplify right side
    31,677.71x = 660,626,410.23
  5. Step 5: Solve for x
    x = 660,626,410.23/31,677.71
  6. Step 6: Final answer
    x = 20,854.62

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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.