Home / 21,433.95-32,155.99-8,947.04

Finding the Fourth Proportional to 21,433.95, 32,155.99 and 8,947.04

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Solution

The fourth proportional to 21,433.95, 32,155.99 and 8,947.04 is: 13,422.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,433.95 : 32,155.99 = 8,947.04 : x
  2. Step 2: Convert to fraction form
    21,433.95/32,155.99 = 8,947.04/x
  3. Step 3: Cross multiply
    21,433.95x = 32,155.99 × 8,947.04
  4. Step 4: Simplify right side
    21,433.95x = 287,700,767.99
  5. Step 5: Solve for x
    x = 287,700,767.99/21,433.95
  6. Step 6: Final answer
    x = 13,422.67

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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.