Home / 21,429.12-32,099.54-10,302.96

Finding the Fourth Proportional to 21,429.12, 32,099.54 and 10,302.96

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Solution

The fourth proportional to 21,429.12, 32,099.54 and 10,302.96 is: 15,433.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,429.12 : 32,099.54 = 10,302.96 : x
  2. Step 2: Convert to fraction form
    21,429.12/32,099.54 = 10,302.96/x
  3. Step 3: Cross multiply
    21,429.12x = 32,099.54 × 10,302.96
  4. Step 4: Simplify right side
    21,429.12x = 330,720,276.64
  5. Step 5: Solve for x
    x = 330,720,276.64/21,429.12
  6. Step 6: Final answer
    x = 15,433.22

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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.