Home / 31,941.36-47,891.34-13,216.32

Finding the Fourth Proportional to 31,941.36, 47,891.34 and 13,216.32

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Solution

The fourth proportional to 31,941.36, 47,891.34 and 13,216.32 is: 19,815.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,941.36 : 47,891.34 = 13,216.32 : x
  2. Step 2: Convert to fraction form
    31,941.36/47,891.34 = 13,216.32/x
  3. Step 3: Cross multiply
    31,941.36x = 47,891.34 × 13,216.32
  4. Step 4: Simplify right side
    31,941.36x = 632,947,274.67
  5. Step 5: Solve for x
    x = 632,947,274.67/31,941.36
  6. Step 6: Final answer
    x = 19,815.91

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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.