Home / 21,416.30-32,112.30-9,715.04

Finding the Fourth Proportional to 21,416.30, 32,112.30 and 9,715.04

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Solution

The fourth proportional to 21,416.30, 32,112.30 and 9,715.04 is: 14,567.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,416.30 : 32,112.30 = 9,715.04 : x
  2. Step 2: Convert to fraction form
    21,416.30/32,112.30 = 9,715.04/x
  3. Step 3: Cross multiply
    21,416.30x = 32,112.30 × 9,715.04
  4. Step 4: Simplify right side
    21,416.30x = 311,972,278.99
  5. Step 5: Solve for x
    x = 311,972,278.99/21,416.30
  6. Step 6: Final answer
    x = 14,567.05

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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.