Home / 38,181.12-52,690.40-21,185.68

Finding the Fourth Proportional to 38,181.12, 52,690.40 and 21,185.68

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Solution

The fourth proportional to 38,181.12, 52,690.40 and 21,185.68 is: 29,236.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,181.12 : 52,690.40 = 21,185.68 : x
  2. Step 2: Convert to fraction form
    38,181.12/52,690.40 = 21,185.68/x
  3. Step 3: Cross multiply
    38,181.12x = 52,690.40 × 21,185.68
  4. Step 4: Simplify right side
    38,181.12x = 1,116,281,953.47
  5. Step 5: Solve for x
    x = 1,116,281,953.47/38,181.12
  6. Step 6: Final answer
    x = 29,236.49

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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.