Home / 21,188.35-29,250.81-14,928.67

Finding the Fourth Proportional to 21,188.35, 29,250.81 and 14,928.67

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Solution

The fourth proportional to 21,188.35, 29,250.81 and 14,928.67 is: 20,609.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,188.35 : 29,250.81 = 14,928.67 : x
  2. Step 2: Convert to fraction form
    21,188.35/29,250.81 = 14,928.67/x
  3. Step 3: Cross multiply
    21,188.35x = 29,250.81 × 14,928.67
  4. Step 4: Simplify right side
    21,188.35x = 436,675,468.83
  5. Step 5: Solve for x
    x = 436,675,468.83/21,188.35
  6. Step 6: Final answer
    x = 20,609.23

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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.