Home / 21,869.43-32,776.44-13,968.91

Finding the Fourth Proportional to 21,869.43, 32,776.44 and 13,968.91

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Solution

The fourth proportional to 21,869.43, 32,776.44 and 13,968.91 is: 20,935.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,869.43 : 32,776.44 = 13,968.91 : x
  2. Step 2: Convert to fraction form
    21,869.43/32,776.44 = 13,968.91/x
  3. Step 3: Cross multiply
    21,869.43x = 32,776.44 × 13,968.91
  4. Step 4: Simplify right side
    21,869.43x = 457,851,140.48
  5. Step 5: Solve for x
    x = 457,851,140.48/21,869.43
  6. Step 6: Final answer
    x = 20,935.67

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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.