Home / 29,918.10-41,258.21-19,690.86

Finding the Fourth Proportional to 29,918.10, 41,258.21 and 19,690.86

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Solution

The fourth proportional to 29,918.10, 41,258.21 and 19,690.86 is: 27,154.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,918.10 : 41,258.21 = 19,690.86 : x
  2. Step 2: Convert to fraction form
    29,918.10/41,258.21 = 19,690.86/x
  3. Step 3: Cross multiply
    29,918.10x = 41,258.21 × 19,690.86
  4. Step 4: Simplify right side
    29,918.10x = 812,409,538.51
  5. Step 5: Solve for x
    x = 812,409,538.51/29,918.10
  6. Step 6: Final answer
    x = 27,154.45

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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.