Home / 20,653.64-28,502.58-11,222.84

Finding the Fourth Proportional to 20,653.64, 28,502.58 and 11,222.84

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Solution

The fourth proportional to 20,653.64, 28,502.58 and 11,222.84 is: 15,487.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,653.64 : 28,502.58 = 11,222.84 : x
  2. Step 2: Convert to fraction form
    20,653.64/28,502.58 = 11,222.84/x
  3. Step 3: Cross multiply
    20,653.64x = 28,502.58 × 11,222.84
  4. Step 4: Simplify right side
    20,653.64x = 319,879,894.93
  5. Step 5: Solve for x
    x = 319,879,894.93/20,653.64
  6. Step 6: Final answer
    x = 15,487.82

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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.