Home / 28,124.08-38,809.68-15,548

Finding the Fourth Proportional to 28,124.08, 38,809.68 and 15,548

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Solution

The fourth proportional to 28,124.08, 38,809.68 and 15,548 is: 21,455.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,124.08 : 38,809.68 = 15,548 : x
  2. Step 2: Convert to fraction form
    28,124.08/38,809.68 = 15,548/x
  3. Step 3: Cross multiply
    28,124.08x = 38,809.68 × 15,548
  4. Step 4: Simplify right side
    28,124.08x = 603,412,904.64
  5. Step 5: Solve for x
    x = 603,412,904.64/28,124.08
  6. Step 6: Final answer
    x = 21,455.38

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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.