Home / 20,973.41-28,943.30-11,541.92

Finding the Fourth Proportional to 20,973.41, 28,943.30 and 11,541.92

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Solution

The fourth proportional to 20,973.41, 28,943.30 and 11,541.92 is: 15,927.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,973.41 : 28,943.30 = 11,541.92 : x
  2. Step 2: Convert to fraction form
    20,973.41/28,943.30 = 11,541.92/x
  3. Step 3: Cross multiply
    20,973.41x = 28,943.30 × 11,541.92
  4. Step 4: Simplify right side
    20,973.41x = 334,061,195.43
  5. Step 5: Solve for x
    x = 334,061,195.43/20,973.41
  6. Step 6: Final answer
    x = 15,927.84

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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.