Home / 29,281.40-40,408.34-15,852.75

Finding the Fourth Proportional to 29,281.40, 40,408.34 and 15,852.75

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Solution

The fourth proportional to 29,281.40, 40,408.34 and 15,852.75 is: 21,876.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,281.40 : 40,408.34 = 15,852.75 : x
  2. Step 2: Convert to fraction form
    29,281.40/40,408.34 = 15,852.75/x
  3. Step 3: Cross multiply
    29,281.40x = 40,408.34 × 15,852.75
  4. Step 4: Simplify right side
    29,281.40x = 640,583,081.14
  5. Step 5: Solve for x
    x = 640,583,081.14/29,281.40
  6. Step 6: Final answer
    x = 21,876.79

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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.