Home / 21,468.78-32,202.59-9,619.34

Finding the Fourth Proportional to 21,468.78, 32,202.59 and 9,619.34

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Solution

The fourth proportional to 21,468.78, 32,202.59 and 9,619.34 is: 14,428.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,468.78 : 32,202.59 = 9,619.34 : x
  2. Step 2: Convert to fraction form
    21,468.78/32,202.59 = 9,619.34/x
  3. Step 3: Cross multiply
    21,468.78x = 32,202.59 × 9,619.34
  4. Step 4: Simplify right side
    21,468.78x = 309,767,501.08
  5. Step 5: Solve for x
    x = 309,767,501.08/21,468.78
  6. Step 6: Final answer
    x = 14,428.74

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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.