Home / 22,485.93-31,043.01-13,535.64

Finding the Fourth Proportional to 22,485.93, 31,043.01 and 13,535.64

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Solution

The fourth proportional to 22,485.93, 31,043.01 and 13,535.64 is: 18,686.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,485.93 : 31,043.01 = 13,535.64 : x
  2. Step 2: Convert to fraction form
    22,485.93/31,043.01 = 13,535.64/x
  3. Step 3: Cross multiply
    22,485.93x = 31,043.01 × 13,535.64
  4. Step 4: Simplify right side
    22,485.93x = 420,187,007.88
  5. Step 5: Solve for x
    x = 420,187,007.88/22,485.93
  6. Step 6: Final answer
    x = 18,686.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.