Home / 28,774.32-39,707.64-16,197.36

Finding the Fourth Proportional to 28,774.32, 39,707.64 and 16,197.36

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Solution

The fourth proportional to 28,774.32, 39,707.64 and 16,197.36 is: 22,351.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,774.32 : 39,707.64 = 16,197.36 : x
  2. Step 2: Convert to fraction form
    28,774.32/39,707.64 = 16,197.36/x
  3. Step 3: Cross multiply
    28,774.32x = 39,707.64 × 16,197.36
  4. Step 4: Simplify right side
    28,774.32x = 643,158,939.83
  5. Step 5: Solve for x
    x = 643,158,939.83/28,774.32
  6. Step 6: Final answer
    x = 22,351.84

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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.