Home / 21,735.72-32,584.02-7,875

Finding the Fourth Proportional to 21,735.72, 32,584.02 and 7,875

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Solution

The fourth proportional to 21,735.72, 32,584.02 and 7,875 is: 11,805.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,735.72 : 32,584.02 = 7,875 : x
  2. Step 2: Convert to fraction form
    21,735.72/32,584.02 = 7,875/x
  3. Step 3: Cross multiply
    21,735.72x = 32,584.02 × 7,875
  4. Step 4: Simplify right side
    21,735.72x = 256,599,157.50
  5. Step 5: Solve for x
    x = 256,599,157.50/21,735.72
  6. Step 6: Final answer
    x = 11,805.41

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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.