Home / 28,097.46-38,776.05-15,521.94

Finding the Fourth Proportional to 28,097.46, 38,776.05 and 15,521.94

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Solution

The fourth proportional to 28,097.46, 38,776.05 and 15,521.94 is: 21,421.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,097.46 : 38,776.05 = 15,521.94 : x
  2. Step 2: Convert to fraction form
    28,097.46/38,776.05 = 15,521.94/x
  3. Step 3: Cross multiply
    28,097.46x = 38,776.05 × 15,521.94
  4. Step 4: Simplify right side
    28,097.46x = 601,879,521.54
  5. Step 5: Solve for x
    x = 601,879,521.54/28,097.46
  6. Step 6: Final answer
    x = 21,421.14

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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.