Home / 25,667.56-35,388.30-21,051.40

Finding the Fourth Proportional to 25,667.56, 35,388.30 and 21,051.40

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Solution

The fourth proportional to 25,667.56, 35,388.30 and 21,051.40 is: 29,023.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,667.56 : 35,388.30 = 21,051.40 : x
  2. Step 2: Convert to fraction form
    25,667.56/35,388.30 = 21,051.40/x
  3. Step 3: Cross multiply
    25,667.56x = 35,388.30 × 21,051.40
  4. Step 4: Simplify right side
    25,667.56x = 744,973,258.62
  5. Step 5: Solve for x
    x = 744,973,258.62/25,667.56
  6. Step 6: Final answer
    x = 29,023.92

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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.