Home / 20,038.11-27,652.85-11,541.72

Finding the Fourth Proportional to 20,038.11, 27,652.85 and 11,541.72

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Solution

The fourth proportional to 20,038.11, 27,652.85 and 11,541.72 is: 15,927.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,038.11 : 27,652.85 = 11,541.72 : x
  2. Step 2: Convert to fraction form
    20,038.11/27,652.85 = 11,541.72/x
  3. Step 3: Cross multiply
    20,038.11x = 27,652.85 × 11,541.72
  4. Step 4: Simplify right side
    20,038.11x = 319,161,480.76
  5. Step 5: Solve for x
    x = 319,161,480.76/20,038.11
  6. Step 6: Final answer
    x = 15,927.72

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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.