Home / 21,812.17-32,721.35-7,017.65

Finding the Fourth Proportional to 21,812.17, 32,721.35 and 7,017.65

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Solution

The fourth proportional to 21,812.17, 32,721.35 and 7,017.65 is: 10,527.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,812.17 : 32,721.35 = 7,017.65 : x
  2. Step 2: Convert to fraction form
    21,812.17/32,721.35 = 7,017.65/x
  3. Step 3: Cross multiply
    21,812.17x = 32,721.35 × 7,017.65
  4. Step 4: Simplify right side
    21,812.17x = 229,627,020.93
  5. Step 5: Solve for x
    x = 229,627,020.93/21,812.17
  6. Step 6: Final answer
    x = 10,527.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.