Home / 20,239.39-30,361.63-10,866.53

Finding the Fourth Proportional to 20,239.39, 30,361.63 and 10,866.53

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Solution

The fourth proportional to 20,239.39, 30,361.63 and 10,866.53 is: 16,301.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,239.39 : 30,361.63 = 10,866.53 : x
  2. Step 2: Convert to fraction form
    20,239.39/30,361.63 = 10,866.53/x
  3. Step 3: Cross multiply
    20,239.39x = 30,361.63 × 10,866.53
  4. Step 4: Simplify right side
    20,239.39x = 329,925,411.44
  5. Step 5: Solve for x
    x = 329,925,411.44/20,239.39
  6. Step 6: Final answer
    x = 16,301.15

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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.