Home / 28,048.92-38,706.78-15,473.40

Finding the Fourth Proportional to 28,048.92, 38,706.78 and 15,473.40

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Solution

The fourth proportional to 28,048.92, 38,706.78 and 15,473.40 is: 21,352.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,048.92 : 38,706.78 = 15,473.40 : x
  2. Step 2: Convert to fraction form
    28,048.92/38,706.78 = 15,473.40/x
  3. Step 3: Cross multiply
    28,048.92x = 38,706.78 × 15,473.40
  4. Step 4: Simplify right side
    28,048.92x = 598,925,489.65
  5. Step 5: Solve for x
    x = 598,925,489.65/28,048.92
  6. Step 6: Final answer
    x = 21,352.89

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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.