Home / 21,362.78-32,047.20-6,572.90

Finding the Fourth Proportional to 21,362.78, 32,047.20 and 6,572.90

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Solution

The fourth proportional to 21,362.78, 32,047.20 and 6,572.90 is: 9,860.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,362.78 : 32,047.20 = 6,572.90 : x
  2. Step 2: Convert to fraction form
    21,362.78/32,047.20 = 6,572.90/x
  3. Step 3: Cross multiply
    21,362.78x = 32,047.20 × 6,572.90
  4. Step 4: Simplify right side
    21,362.78x = 210,642,880.64
  5. Step 5: Solve for x
    x = 210,642,880.64/21,362.78
  6. Step 6: Final answer
    x = 9,860.28

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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.