Home / 20,038.90-27,652.54-11,085.87

Finding the Fourth Proportional to 20,038.90, 27,652.54 and 11,085.87

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Solution

The fourth proportional to 20,038.90, 27,652.54 and 11,085.87 is: 15,297.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,038.90 : 27,652.54 = 11,085.87 : x
  2. Step 2: Convert to fraction form
    20,038.90/27,652.54 = 11,085.87/x
  3. Step 3: Cross multiply
    20,038.90x = 27,652.54 × 11,085.87
  4. Step 4: Simplify right side
    20,038.90x = 306,552,389.20
  5. Step 5: Solve for x
    x = 306,552,389.20/20,038.90
  6. Step 6: Final answer
    x = 15,297.87

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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.