Home / 21,532.95-29,719.05-11,975.91

Finding the Fourth Proportional to 21,532.95, 29,719.05 and 11,975.91

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Solution

The fourth proportional to 21,532.95, 29,719.05 and 11,975.91 is: 16,528.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,532.95 : 29,719.05 = 11,975.91 : x
  2. Step 2: Convert to fraction form
    21,532.95/29,719.05 = 11,975.91/x
  3. Step 3: Cross multiply
    21,532.95x = 29,719.05 × 11,975.91
  4. Step 4: Simplify right side
    21,532.95x = 355,912,668.09
  5. Step 5: Solve for x
    x = 355,912,668.09/21,532.95
  6. Step 6: Final answer
    x = 16,528.75

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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.