Home / 27,886.80-38,485.32-15,950.64

Finding the Fourth Proportional to 27,886.80, 38,485.32 and 15,950.64

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Solution

The fourth proportional to 27,886.80, 38,485.32 and 15,950.64 is: 22,012.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,886.80 : 38,485.32 = 15,950.64 : x
  2. Step 2: Convert to fraction form
    27,886.80/38,485.32 = 15,950.64/x
  3. Step 3: Cross multiply
    27,886.80x = 38,485.32 × 15,950.64
  4. Step 4: Simplify right side
    27,886.80x = 613,865,484.60
  5. Step 5: Solve for x
    x = 613,865,484.60/27,886.80
  6. Step 6: Final answer
    x = 22,012.76

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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.