Home / 21,535.95-32,234.81-11,515.67

Finding the Fourth Proportional to 21,535.95, 32,234.81 and 11,515.67

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Solution

The fourth proportional to 21,535.95, 32,234.81 and 11,515.67 is: 17,236.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,535.95 : 32,234.81 = 11,515.67 : x
  2. Step 2: Convert to fraction form
    21,535.95/32,234.81 = 11,515.67/x
  3. Step 3: Cross multiply
    21,535.95x = 32,234.81 × 11,515.67
  4. Step 4: Simplify right side
    21,535.95x = 371,205,215.72
  5. Step 5: Solve for x
    x = 371,205,215.72/21,535.95
  6. Step 6: Final answer
    x = 17,236.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.