Home / 31,943.36-47,894.34-13,218.32

Finding the Fourth Proportional to 31,943.36, 47,894.34 and 13,218.32

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Solution

The fourth proportional to 31,943.36, 47,894.34 and 13,218.32 is: 19,818.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,943.36 : 47,894.34 = 13,218.32 : x
  2. Step 2: Convert to fraction form
    31,943.36/47,894.34 = 13,218.32/x
  3. Step 3: Cross multiply
    31,943.36x = 47,894.34 × 13,218.32
  4. Step 4: Simplify right side
    31,943.36x = 633,082,712.31
  5. Step 5: Solve for x
    x = 633,082,712.31/31,943.36
  6. Step 6: Final answer
    x = 19,818.91

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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.