Home / 21,813.89-32,671.62-10,102.50

Finding the Fourth Proportional to 21,813.89, 32,671.62 and 10,102.50

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Solution

The fourth proportional to 21,813.89, 32,671.62 and 10,102.50 is: 15,130.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,813.89 : 32,671.62 = 10,102.50 : x
  2. Step 2: Convert to fraction form
    21,813.89/32,671.62 = 10,102.50/x
  3. Step 3: Cross multiply
    21,813.89x = 32,671.62 × 10,102.50
  4. Step 4: Simplify right side
    21,813.89x = 330,065,041.05
  5. Step 5: Solve for x
    x = 330,065,041.05/21,813.89
  6. Step 6: Final answer
    x = 15,130.96

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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.