Home / 20,973.18-28,943.00-11,541.75

Finding the Fourth Proportional to 20,973.18, 28,943.00 and 11,541.75

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Solution

The fourth proportional to 20,973.18, 28,943.00 and 11,541.75 is: 15,927.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,973.18 : 28,943.00 = 11,541.75 : x
  2. Step 2: Convert to fraction form
    20,973.18/28,943.00 = 11,541.75/x
  3. Step 3: Cross multiply
    20,973.18x = 28,943.00 × 11,541.75
  4. Step 4: Simplify right side
    20,973.18x = 334,052,682.25
  5. Step 5: Solve for x
    x = 334,052,682.25/20,973.18
  6. Step 6: Final answer
    x = 15,927.61

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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.