Home / 20,038.04-27,652.96-11,085.72

Finding the Fourth Proportional to 20,038.04, 27,652.96 and 11,085.72

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Solution

The fourth proportional to 20,038.04, 27,652.96 and 11,085.72 is: 15,298.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,038.04 : 27,652.96 = 11,085.72 : x
  2. Step 2: Convert to fraction form
    20,038.04/27,652.96 = 11,085.72/x
  3. Step 3: Cross multiply
    20,038.04x = 27,652.96 × 11,085.72
  4. Step 4: Simplify right side
    20,038.04x = 306,552,971.73
  5. Step 5: Solve for x
    x = 306,552,971.73/20,038.04
  6. Step 6: Final answer
    x = 15,298.55

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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.