Home / 28,001.08-38,643.24-15,425.83

Finding the Fourth Proportional to 28,001.08, 38,643.24 and 15,425.83

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Solution

The fourth proportional to 28,001.08, 38,643.24 and 15,425.83 is: 21,288.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,001.08 : 38,643.24 = 15,425.83 : x
  2. Step 2: Convert to fraction form
    28,001.08/38,643.24 = 15,425.83/x
  3. Step 3: Cross multiply
    28,001.08x = 38,643.24 × 15,425.83
  4. Step 4: Simplify right side
    28,001.08x = 596,104,050.89
  5. Step 5: Solve for x
    x = 596,104,050.89/28,001.08
  6. Step 6: Final answer
    x = 21,288.61

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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.