Home / 38,486.56-53,111.29-21,719.44

Finding the Fourth Proportional to 38,486.56, 53,111.29 and 21,719.44

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Solution

The fourth proportional to 38,486.56, 53,111.29 and 21,719.44 is: 29,972.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,486.56 : 53,111.29 = 21,719.44 : x
  2. Step 2: Convert to fraction form
    38,486.56/53,111.29 = 21,719.44/x
  3. Step 3: Cross multiply
    38,486.56x = 53,111.29 × 21,719.44
  4. Step 4: Simplify right side
    38,486.56x = 1,153,547,102.32
  5. Step 5: Solve for x
    x = 1,153,547,102.32/38,486.56
  6. Step 6: Final answer
    x = 29,972.73

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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.