Home / 31,716.20-47,477.10-18,529.40

Finding the Fourth Proportional to 31,716.20, 47,477.10 and 18,529.40

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Solution

The fourth proportional to 31,716.20, 47,477.10 and 18,529.40 is: 27,737.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,716.20 : 47,477.10 = 18,529.40 : x
  2. Step 2: Convert to fraction form
    31,716.20/47,477.10 = 18,529.40/x
  3. Step 3: Cross multiply
    31,716.20x = 47,477.10 × 18,529.40
  4. Step 4: Simplify right side
    31,716.20x = 879,722,176.74
  5. Step 5: Solve for x
    x = 879,722,176.74/31,716.20
  6. Step 6: Final answer
    x = 27,737.31

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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.