Home / 21,346.99-32,019.81-9,660.21

Finding the Fourth Proportional to 21,346.99, 32,019.81 and 9,660.21

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Solution

The fourth proportional to 21,346.99, 32,019.81 and 9,660.21 is: 14,490.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,346.99 : 32,019.81 = 9,660.21 : x
  2. Step 2: Convert to fraction form
    21,346.99/32,019.81 = 9,660.21/x
  3. Step 3: Cross multiply
    21,346.99x = 32,019.81 × 9,660.21
  4. Step 4: Simplify right side
    21,346.99x = 309,318,112.57
  5. Step 5: Solve for x
    x = 309,318,112.57/21,346.99
  6. Step 6: Final answer
    x = 14,490.01

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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.